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when the nadis flow regularly, rhythmically and continuously, and no blockages or physiological discomfort is encountered in the breathing process. This stage is known as pranotthana, awakening of the pranas, more specifically of ida and pingala. When the awakening of ida and pingala occurs, sushumna awakens. The awakening of this third force is considered the most important event in pranayama, kriya yoga and kundalini yoga. Pranayama actually begins with the awakening of sushumna, because then the pranic field expands. Until this awakening occurs, the purification of ida and pingala continues throughout the practices.
After the pranas have awakened, the practitioner is ready to undertake the practice of prana vidya. The practitioner must be able to direct prana as necessary, not only within his own body but also the omnipresent, manifest power from which all energies originate. The adept yogi can withdraw prana from any area of the body, so that it becomes impervious to heat, cold or any other sensations. He can also send prana to any area and make it oversensitive. He can send prana to the eyes and see distant objects, to the nose and experience divine aromas, or to the tongue and experience super-sensuous taste. One can learn to use the cosmic energy, which is freely available to all, to create further changes in the patterns of the body, mind and consciousness. Such an awakening of pranic energy indicates the evolution of pranamaya kosha, whereby one is able to go deep into and become established in the higher meditative states.