
    It is not easy to attach in the mind any definite meaning to the word  plane or world [or body] at such an altitude as this, because  any attempt even to symbolise the relation of planes or worlds to one  another demands a stupendous effort of the imagination in a   direction with which we are wholly unfamiliar.         Let us try to imagine what the consciousness of the Divine must be -  the consciousness of the Solar Deity altogether outside any  of the worlds or planes or levels which we ever conceived. We can only  vaguely think of some sort of transcendent Consciousness for  which space no longer exists, to which everything (at least in the  Solar System) is simultaneously present, not only in its actual  condition, but at every stage of its evolution from beginning to end.  We must think of that Divine Consciousness as creating for Its  use these worlds of various types of matter, and then voluntarily  veiling Itself within that matter, and thereby greatly limiting  Itself. By taking upon Itself a garment of the matter of even the  highest of these worlds, It has clearly already imposed upon  Itself a certain limitation; and, equally clearly, each additional  garment assumed, as It involves Itself more and more deeply in  matter, must increase the limitation.
          We shall find that the 'Etheric Double', while necessary to the life of the physical body, is not, properly speaking,  a separate vehicle of consciousness:  it receives and distributes the vital force which emanates from the Sun and is thus   intimately connected with the physical health. 5  
  
             Black: in thick clouds: hatred and malice.
                 Joy shows itself in a general brightening and radiancy of both mental and astral bodies, and in a peculiar rippling of    the surface of the body. Cheerfulness shows itself in a modified bubbling of this, and also in a steady serenity.   
                The mental body is composed of only four types of essence, whereas the  astral [emotion/desire] and the physical are formed of seven    types. 11                The mental body is built of particles of the four lower sub-divisions of the mental world, ie., of mental matter which  corresponds to the four lower sub-divisions of astral matter, and to solid, liquid, gaseous and etheric matter of the physical  plane.
 The three higher grades of mental matter are used to build the Causal,  or Higher Mental [which is expanded upon in Spiritual body page].
 The mental body is the vehicle of the Thinker, who himself resides in  the Causal body. But while the mental body is intended  eventually to be the vehicle of consciousness on the lower mental  plane, it also works on and through the astral and physical  bodies in all manifestations that are usually called the "mind" in  ordinary waking consciousness.  The shape of the mental body is ovoid, [as are the astral and causal].  The matter of the mental body, however, is not evenly  distributed throughout the egg. In the midst of the ovoid is the  physical body, which strongly attracts astral matter: and in its  turn the astral matter strongly attracts mental matter. Consequently,  by far the greater part of the matter of both astral and  mental bodies is gathered within the physical frame. To 'clairvoyant'  sight, therefore, the mental body appears as built of dense  mist, of the shape of the physical body, and surrounded by an ovoid of  much finer mist. The portion of the mental body which projects  beyond the periphery of the physical body forms the mental 'aura'.
 The size of both astral and mental bodies is the same as that of the  causal body, or more accurately, of the section of the causal  body on the lower planes. Thus, unlike the physical body, which has  remained substantially the same size [for aeons], the mental  body grows in size as the man himself develops.14  
  
  
 The sympathetic nervous system is mostly connected with the astral  body, while the cerebro-spinal system is more under the influence   of the ego working through the mental body.
 The process described above may be elucidated a little further. Every  particle in the physical brain has its astral counterpart, and  this in turn has its mental counterpart. If then, we suppose, for the  purposes of our examination, that the whole of the physical  brain be spread out so as to be one particle thick, we may further  suppose that the corresponding astral and mental matter is also  laid out in layers in a similar manner, the astral a little above the  physical, the mental a little above the astral.
 We thus have three layers of matter of differing density, all  corresponding one to the other, but not joined in any way except that  here and there wires of communication exist between the physical and  the astral particles, and between the astral and mental  particles.
 That would fairly represent the condition of affairs in the brain of the average man.
 When, therefore such a man wants to send a thought down from the mental  level to the physical level, the thought - owing to many  channels not being open - may have to go out of its way, as it were,  going laterally through the brain of mental matter until it  can find a way down, passing eventually through a [wire] not at all  suited to it, and then, when it reaches the physical level,  having to move laterally again in the physical brain before it meets  the physical particles which are capable of expressing it.
 It is obvious that such a method is awkward and clumsy. We can thus  understand why it is that some people have no comprehension of   mathematics or no taste for music,art etc. The reason is that in the  part of the brain devoted to that particular faculty or subject  the communications have not yet been opened up.   
  The particles of the mental body are in ceaseless motion. Moreover  they are constantly changing, the mental body automatically     drawing to itself, from the general storehouse, matter that can  maintain the combinations already existing in it.
   In spite of the intensely rapid motion of the mental particles among  themselves, the mental body has yet at the same time a kind of    loose organisation. there are in it certain striations which divide  it more or less irregularly into segments, each of these     corresponding to a certain department in the physical brain, so that  every type of thought should function through its duly assigned    portion. The mental body is as yet so imperfectly developed in  ordinary men, however, [as mentioned above] that there are many in     whom a great number of    special departments are not yet in activity, and any attempt at  thought belonging to those departments has to travel round     through some inappropriate channel which happens to be fully open.  The result is that thought on those subjects, is for those    people, clumsy and uncomprehending. That is why some people have a  head for mathematics and others are unable to perform a simple    mathematical process - why some people instinctively understand,  appreciate and enjoy music, while others do not know one tune    from another.
   Good thoughts produce vibrations of the finer matter of the body,  which by its specific gravity tends to float in the upper part of     the ovoid: wheras bad thoughts, such as selfishness and avarice, are  always oscillations of the grosser matter, which tends to     gravitate    towards the lower part of the ovoid. Consequently the ordinary man  who yields himself not infrequently to selfish thoughts of various    kinds, usually expands the lower part of his mental body, and  presents roughly the appearance of an egg with its larger end downwards.    The man who has not indulged in those lower thoughts, but has devoted  himself to higher ones, tends to expand the upper part of his    mental body and therefore presents the appearance of an egg standing  on its smaller end. All such appearances, however, are only    temporary, the tendency being for the symmetry of the ovoid to  re-assert itself by degrees.14
            
          When a man thinks of a concrete object - a book, house, landscape, etc  - he builds a tiny image of the object in the matter of his  mental body. This image floats in the upper part of that body, usually  in front of the face of the man and about at the level of  the eyes. It remains there as long as the man is comtemplating the  object, and usually for a little time afterwards, the length of  life depending upon the intensity and the clearness of the thought. The  form is quite objective and can be seen by another person  possessed of mental sight. If a man thinks of another person he creates  a tiny portrait in just the same way.    6  
      
 From a study of the colours and striations of a man's mental body, the  'clairvoyant' can perceive his character and the progress  he has made in his life.
 The mental body is more or less refined in its constituents, according  to the stage of intellectual development at which the man has  arrived. it is an object of great beauty, the delicacy and rapid motion  of its particles giving it an aspect of living, iridescent  light, and this beauty becomes an extraordinarily radiant and  entrancing loveliness as the intellect becomes mor highly evolved  and is employed chiefly on pure and sublime topics.     
   Every thought gives rise to vibrations in the mental body, accompanied by a  play of colour described as like the spray of a waterfall as the sunlight strikes it, raised many degrees in colour and vivid  delicacy. [A list of colours and their meanings are found on the Emotion/Desire body page.]
 Where aspirational thought exists it invariably shows itself in a beautiful little violet circle at the top of the ovoid of the  mental body, [eventually] it is a splendid glowing cap of the most lovely colour imaginable.
 Below it often comes the blue ring of devotional thought, usually rather a narrow one, except in the case of the few whose  religion is really deep and genuine.
     Next to that there may be the much broader zone of affectionate thought, which may be of any shade of crimson or rose-colour  according to the type of affection which it indicates.
 Near the zone of affection, and frequently closely connected with it, there is found the orange band, which expresses proud and  ambitious thought.
 Again in intimate relation with pride comes the yellow belt of  intellect, commonly divided into two bands, denoting respectively  the philosophical and the scientific types of thought. The place of  this yellow colour varies much in different men; sometimes  it fills the whole of the upper part of the egg, rising above devotion  and affection, and in such a case pride is generally   excessive.
 Below the group just described, and occupying the middle section of the  ovoid, is the broad belt devoted to concrete shapes - the  part of the mental body from which all ordinary thought-forms issue.  [these will be described later]
 The principal colour here is green, shaded often with brown or yellow, according to the disposition of the person.
 There is no part of the mental body which varies more widely than this.  Some people have their mental bodies crowded with a vast  number of concrete images, whereas others have only a few. In some they  are clear and well outlined, in others they are vague and   hazy to the last degree; in some they are classified, labelled and  arranged in the most orderly fashion, in others they are not   arranged at all, but are left in hopeless confusion.
 In the lower parts of the ovoid come the belts expressing all kinds of  undesirable thoughts. A kind of muddy precipitate of  selfishness often fills the lower third, or even half, of the mental  body, and above this is sometimes a ring portraying hatred,  cunning or fear. Naturally, as a man develops, this lower part  vanishes, the upper part gradually expanding until it fills the  whole body [as shown in Man visible and Invisible]
 The general rule is, the stronger the thought, the larger is the vibration; the more spiritual and unselfish the thought  the higher or more rapid is the vibration. strength of thought produces brilliancy, spirituality produces delicacy of  colour.14            
           
 The principles which underlie the production of all thought-emotion forms are:-  
 
  1. Colour is determined by the quality of the thought or emotion.
 2. Form is determined by the nature of the thought or emotion.
 3. Clearness of Outline is determined by the definiteness of the thought or emotion.
  The life period of a thought-form depends upon (1) its initial intensity; (2) the nutriment afterwards supplied to it by a   repetition of the thought, either by the generator or by others. Its life may be continually reinforced by this repetition, a  thought which is brooded over acquiring great stability of form. So again thought-forms of similar character are attracted to  and mutually strengthen each other, making a form of great energy and intensity.
 Furthermore, such a thought-form appears to possess instinctive desire  to prolong its life and will react on its creator, tending  to evoke from him renewal of the feeling that created it. It will react  in a similar, though not so perfect manner on any others  with whom it may come into contact.
 The colours in which thought-forms express themselves are identical with the colours in the [emotional] aura.
 The brilliance and depth of the colours are usually a measure of the strength and the activity of the feeling.
  6
   Each thought-form is a temporary entity. It resembles a charged  battery, awaiting an opportunity to discharge itself. Its  tendency is always to reproduce its own rate of vibration in the mental  body upon which it fastens itself, and so to arouse in  it, a like thought. If the person at whom it is aimed happens to be  busy or already engaged in some definite train of thought, the  particles of his mental body are already swinging at a certain  determinate rate, and cannot for the moment be affected from  without. In that case the thought-form bides its time, hanging about  its object until he/she is sufficiently at rest to permit  its entrance; then it discharges itself upon them, and in the act  ceases to exist.
 The self-centred thought behaves in exactly the same way with regard to  its generator and discharges itself upon him when the  opportunity offers. If it be an evil thought, he generally regards it  as the suggestion of a tempting demon, whereas in truth he  tempts himself. Usually each definite thought creates a new  thought-form; but if a thought-form of the same nature is hovering  round the thinker, under certain circumstances a new thought on the  same subject, instead of creating a new form, coalesces with  and strengthens, the old one, so that by long brooding over the same  subject a man may sometimes create a thought-form of tremendous  power. If the thought be a wicked one, such a thought-form may become a  veritable evil influence, lasting perhaps for many years,  and having, for a time all the appearance and powers of a real living  entity. w1
         For our present purpose we may classify thought-forms into three kinds:
 
   1. Those connected solely with their originator.
 2. Those connected with another person.
 3. Those not definitely personal.
 
 If a mans thought is about himself, or based on a personal feeling, as  the vast majority of thoughts are, the form will hover in  the immediate neighborhood of its generator. At any time then, when he  is in a passive condition, his thoughts and feelings not  being specifically occupied, his own thought-form will return to him  and discharge itself upon him. In addition, each man also  serves as a magnet to draw towards himself the thought-forms of others  similar to his own, thus attracting towards himself  reinforcements of energy from outside. People who are becoming  sensitive have sometimes imagined, in such cases, that they have  been tempted by the 'devil', whereas it is their own thought-desire  forms which are the case of the 'temptation.' Long brooding  over the same subject may create a thought-form of tremendous power.  Such a form may last for many years and have for a time all  the appearance and powers of a real living entity.
 Most men move through life enclosed literally within a cage of their  own building, surrounded by masses of forms created by their  habitual thoughts. One important effect of this is that each man looks  out upon the world through his own thought-forms,  and thus sees everything tinged by them.
 Thus a man's own thought-forms re-act upon him, tending to reproduce  themselves and thus setting up definite habits of thought and  feeling, which may be helpful if of a lofty character, but are often  cramping and a hindrance to growth, obscuring the mental   vision and facilitating the formation of prejudice and fixed moods or  attitudes which may develop into definite vices.
 "Man is continually peopling his current in space with a world of his own, crowded with the offspring of his fancies, desires,  impulses and passions." These thought-forms remain in his aura, increasing in number and intensity, until certain kinds of them  so dominate his mental and emotional life that the man rather answers to their impulse than decides anew: thus are habits, the  outer expression of his stored up force, created, and thus is character built.
 Moreover, as each man leaves behind him a trail of thought-forms, it follows that as we go along a street we are walking amidst  a sea of other men's thoughts. If a man leaves his mind blank for a time, these thoughts of others drift through it: if one  happens to attract his attention, his mind seizes upon it, makes it its own, strengthening it by the addition of its force, and  then casts its out again to affect somebody else. A man therefore, is not responsible for a thought which floats into his mind,  but he is reponsible if he  takes it up, dwells upon it, and then sends it out again, strengthened.
 
 The vast majority of thought-forms are simply copies or images of  people or other material objects. They are formed first within  the mental body and then pass outwards and remain suspended before the  man. This applies to anything about which one may be  thinking: persons, houses, landscapes, or anything else.
 A painter, for example, builds out of the matter of his mental body a conception of his future picture, projects it into space  in front of him, keeps it before his 'minds's eye', and copies it. This thought- and emotion-form persists and may be regarded  as the unseen counterpart of the picture, radiating out its own vibrations and affecting all who come within its influence.
 Similarly a novelist builds in mental matter images of his characters, and then, by his will, moves these puppets from one  position or grouping to another, so that the plot of the story is acted out before him.
 
 Considered in the mass[es], it is easy to realise the tremendous effect  that these thought-forms or artificial elementals have  in producing national and race-feelings, and thus in biasing and  prejudicing the mind: for thought-forms of a similar kind have  a tendency to aggregate together and form a kind of collective entity.  We see everything through this atmosphere, every thought   is more or less refracted by it, and our own astral bodies are  vibrating in accord with it. As most people are receptive rather  than initiative in their nature, they act almost as automatic  reproducers of the thoughts which reach them, and thus the national  atmosphere is continually intensified. This fact obviously explains  many of the phenomena of crowd-consciousness.
 The influence of these aggregated thought-forms extends still further. Thought-forms of a destructive type act as a disruptive  agent and often precipitate havoc on the physical plane, causing "accidents", natural convulsions, storms, earthquakes, floods,  or crime, disease,social upheavals and wars.    6  
  
 All these which have been described are the ordinary unpremeditated  thoughts of man. A man can make a thought-form intentionally,  and aim it at another with the object of helping him. This is one of  the lines of activity adopted by those who desire to serve   humanity. A steady stream of powerful thought dircted intelligently  upon another person may be of the greatest assistance to him.  A strong thought-form may be a real guardian angel, and protect its  object from impurity, from irritability or from fear.
 An interesting branch of the subject is the study of the various shapes  and colours taken by thought-forms of different kinds. The  colours indicate the nature of the thought, and are in agreement with  those which we have already described as existing in the  bodies. The shapes are of infinite variety, but are often in some way  typical of the kind of thought which they express.
 Every thought of definite character, such as a thought of affection or  hatred, of devotion or suspicion, of anger or fear, of  pride or jealousy, not only creates a form but also radiates an  undulation. The fact that each one of these thoughts is expressed   by a certain colour indicates that the thought expresses itself as an  oscillation of the matter of a certain part of the mental  body. This rate of oscillation communicates itself to the surrounding  mental matter precisely in the same way as the vibration of  a bell communicates itself to the surrounding air.
 This radiation travels out in all directions, and whenever it impinges  upon another mental body in a passive or receptive   condition it communicates to it something of its own vibration. This  does not convey a definite complete idea, as does the  thought-form, but it tends to produce a thought of the same character  as itself. For example, if the thought be devotional its  undulations will excite devotion, but the object of the worship may be  different in the case of each person upon whose mental body  they impinge. The thought-form on the other hand, can reach only one  person, but will convey to that person (if receptive) not only  a general devotional feeling, but also a precise image of the Being for  whom the adoration was already felt.
 Any person who habitually thinks pure, good and strong thoughts is  utilizing for that purpose the higher part of his mental body  - a part which is not used at all by the ordinary man, and is entirely  undeveloped in him. Such a one is therefore a power for good  in the world, and is being of good use to all his neighbours who are  capable of any sort of response. For the vibration which he  sends out tends to arouse a new and higher part of their mental bodies,  and consequently to open before them altogether new fields  of thought.
 It may not be exactly the same thought as that sent out, but it is of  the same nature. The undulations generated by a man thinking  of Theosophy [for example] do not necessarily communicate Theosophical  ideas to all those around him; but they do awaken in them more liberal  and  higher thought than that to which they have before been accustomed. On  the other hand, the thought-forms generated under such  circumstances, though more limited in their action than the radiation,  are also more precise; they can affect only those who are to  some extent open to them, but to them they will convey definite  Theosophical ideas. w1    
       
 In view of the fact that the seven grades of mental matter correspond  respectively to the seven grades of physical (as well as to those of  astral) matter it would seem that the mental body would be more  especially affected by the physical  solids, liquids, gases and ethers, ie., by the four lower orders of  physical matter.) it will of course, be clear to the student   that a mental body composed of the coarse varieties of mental matter  will respond   to the coarser types of thought more readily than to the finer  varieties.
 Coarse food and drink tend to produce a coarse mental body. Flesh  foods, alcohol and tobacco are harmful to physical, astral and  mental bodies. The same applies to nearly all drugs.
 Furthermore, a body fed on flesh and alcohol is especially liable to be thrown out of health by the opening up of the higher   consciousness; nervous diseases in fact, are partly due to the fact that the higher consciousness is trying to express itself  through bodies clogged by flesh-products and alcohol.
 Dirt of all kinds is often more objectionable in the higher worlds than  in the physical. Thus for example, the mental and astral  counterparts of the waste matter which is constantly being thrown off  by the physical body as invisible perspiration are of the  most undesirable character.
 Loud, sharp or sudden noises should, as far as possible, be avoided by  any one who wishes to keep his astral and mental bodies in  order. The cumulative effect of noise on the mental body is a feeling  of fatigue and inability to think clearly.    
   
The ordinary person uses matter of the seventh or lowest [mental]  sub-plane only; that being very near to the astral plane, all his   thoughts are coloured by reflections from the astral or emotional  world. Very few people can as yet deal with the sixth sub-plane  [this is from a book dated 1926]; great scientific men certainly use it  a good deal but unfortunately they mingle it with the  matter of the lowest sub-plane and then become jealous of other  peoples' discoveries and inventions. The matter of the fifth sub-  plane is much more free from the possibility of astral entanglement  with astral vibrations.14  
                Also known as Karana Sarira(causal-seed body) or, Anandamayakosha (bliss-joy sheath),        Higher mind body, Ego,       Causal body, Superconscious, Soul, Buddhic body, Intuitional body.
     
     
     
            From the Atma dwelling in the heart, and the size of a thumb, radiate 101 nadis. From each of these 101 nadis emanate 100   subtler nadis, each of which branches off into another 72,000.