पातञ्जल योगसूत्र (स्वामी विवेकानन्द भाष्य एवं सूत्र व्याख्या)

Patanjali Yoga Sutras out, and the third action is when the breath is held in the lungs, or stopped from entering the lungs. These, again, are varied by place and time. By place is meant that the Prana is held to some particular part of the body. By time is meant ho wlong the Prana should be confined to a certain place, and so we are told how many seconds to keep on motion, and how many seconds to keep another. The result of this Pranayama is Udghata, awakening the Kundalini. 51. बाह्याभ्यन्तरविषयाक्षेपी चतुर्थः ॥ ५१ ॥ bahyabhyantaravishayakshepi chaturthah The fourth is restraining the Prana by directing it either to the external or internal objects. This is the fourth sort of Pranayama. Prana can be directed either inside or outside. 52. ततः क्षीयते प्रकाशावरणम् ॥ ५२ ॥ dharanasu ch yojnata manasah From that, the covering to the light of the Chitta is attenuated. The Chitta has, by its own nature, all knowledge. It is made of Sattva particles, but is covered by Rajas and Tamas particles, and by Pranayama this covering is removed. 95