What is Vyana ?
Vyana pervades the whole body, regulating & controlling all movement and coordinating the other pranas. It acts as the reserve force for the other pranas. Vyana Prana flows through the nerve channels of the human body. It has an effect upon the whole body and particularly on the Nadis. Poor circulation, impaired nerve stimulation and nervous breakdowns, originate from a deficiency in Vyana Prana.
Vyana Prana is activated and strengthened in the practice of Kumbhaka (breath retention). With each natural, relaxed breath that we take, there is an automatic pause between inhalation and exhalation. In the practice of Pranayama, this pause is consciously lengthened. When we retain the breath, we withhold energy in the body with a resultant build up in pressure. This pressure has the effect of releasing energy blockages. Kumbhaka stimulates the nervous system. Anyone who has combined the techniques of Kumbhaka and Maha Bandha, knows the subsequent, pleasant sensation of peace that flows through the body. This is the reason for being able to meditate well after this practice. The feeling is produced by the increased flow of Vyana Prana throughout the whole body.