The following lines, or Sutras, speak of further, higher meditations or Samyamas. They may look fantastic, but these pages of Yoga literature were the inspiration and theme for many recorded films and books on paranormal and supernatural human powers.
It is up to you how you understand them.
Higher spirit and soul power, supernatural powers and Yoga Sutra
That old text of the Yoga Sutra says that a yoga practitioner who has perfected mid-breathing or samana prana, can itself emit rays of light.
Samana prana is a vital, vital force that governs the area between the heart and the navel and which is associated with the expansion of consciousness and transformation.
A yogi who has mastered the up breath or udana prana (the life force which flows the neck upwards; one of the five prana vayus, pancha pranas, five different life forces) and operates with the ability to respond to the outside world, can rise his body above water and swamps, or to walk on the thorns.
In the moment of death, the udana prana is responsible for the detachment of the astral body from the physical body and the advanced yogi who has mastered the udana prana can die at will.
A yogi who has mastered the mid breath or samana prana (the life force which governs the region between the heart and the navel and relates to expansion of the consciousness and transformation) can radiates the rays of light.
With samyama (meditation) on the relation between the ear and ether (space, akasha) one obtains the divine, supernatural hearing of all sounds.
With samyama on the relation between the body and space, or by achieving through the meditation the lightness of the cotton fibre, one can travel through air or levitate being freed of the power of gravitation.
With samyama on the external waves of mind which are separated from the body and ego, a veil of the inner light, darkness and ignorance disappear. The consciousness of the yogi can then enter into another body without imagination.
With samyama on the gross elements and their forms, on the subtle elements, on the essential characteristics in both gross and subtle elements and on the influences which they have on the soul, the yogi gains mastery over the elements.
Through the mastery over the elements one gains the power of making the body atomically small (anima) and similar powers, and of perfection of the body.
If the yogi has attained those powers (mahasiddhi), he can make himself small as a atom or huge as a mountain (mahima), heavy (gharima) or light (laghima), he can realize anything he desires (prakamya). He can rule own body and spiritual powers (ishitva). He can also rule over other beings and elements (vashitva).
Nothing and no one stands in his way.
The perfection of the physical body (kaya-sampat) includes beauty (rupa), gracefulness (lavanaya), strength (bala) and adamantine hardness (vajra). Nothing can destroy it (samhanana), there are no sicknesses and pain, until the yogi wishes it (the later has a very deep meaning not a surfaced).
With samyama on the perception (grahana) and knowledge of the object, its nature or form (svarupa) and transformation which occurs due this perception and knowledge, on the ego-sense or I-ness (asmita) which is in the center of the indriyas (mental forms of actions and senses), on the relation (anvaya) between three innermost nature of the organs (gunas) and on the experience of them (arthavattva), one gains the mastery of the organs.
With this mastery (tato), the body gains the power of movements fast like the mind (manojavitvam), power of extrasensory perception (as clairvoyance or clairaudience) or power of the sense organs (vikaranabhavah) separately from the body and the mastery of the primal cause, prakriti (pradhanajayasca).
The power of the control of nature, prakriti, is a high and sweet power but it should not be a reason for the attachment to those powers, since such person already possesses the essential and intuitive knowledge of his being.