The essence of Shiva Bhairava

Look up to the bright sky and train your eyes to see the brightness in it, you will notice the faint clouds that glow even brighter in that light. Look up to the sun for a few seconds and maintain the gaze even in the brightness, you will notice it is round and glowing even more. Keep silent and close all your sense faculties and kill all the noise around you and you will realize the primordial sound OM grows within you.
This is Bhairava, This is Shiva, This is prana.

Prana, as beautifully described in the Vigyana Bhairava Tantra, is not the breath that goes in and out, but the eternal space that can be felt between any two breaths. Prana is not the air we breathe but it is the energy or life that is generated by the constant vibration between any two breaths. This is where OM is felt.
This is defined as Bhairava, This is defined as Shiva, This is Prana.

The human self is described most poetically; we are but a lotus plant, whose stem is blue on the outside and red on the inside. We are but a lotus plant whose stem is the channel through which Shakti flows upwards to meet her Shiva at the seat of consciousness. We are but a lotus plant immersed in the waters of Maya but enlightened at the epitome of our consciousness - the thousand petal form.
This consciousness is Bhairava, this feeling of bliss is Shiva.

When your senses shiver and your mind becomes still, and when you quiver, feel this bliss. When you practice love in the ritual of union feel the quivering of your senses like the wind in the leaves. You will feel ecstatic love. At the start of this union, be in the fire of this energy released by intimate sensual pleasure. Merge into Shakti, burn in this space but avoid the ashes in the end. Feel your substance, your bones, your flesh and your blood saturated with cosmic energy.
This is Bhairavam this is Shiva, this is supreme bliss

There is beauty in the emptiness of space devoid of trees, hills or dwellings. There is poetry in the fire of life that burns all illusion to death. I see the entire world burn as a blazing inferno and when all turns to ash, I feel this space that envelopes me, I feel the entire universe dissolving into subtler form until it merges into pure consciousness.
This is Bhairava, Thihs is Shiva, This is prana.

Waves are born in the ocean and dissolve in the ocean itself, flames are born out of fire and dissolve in this fire of life. The sun appears in the sky and fades into the sky itself. The self rises in the realm of knowledge and energy and slowly being deprived of it, dissolves into itself revealing to us our true being.
This essence of subtle life is Bhairava, is Shiva, is Prana.