40

40. By conquering the current called Udāna the Yogi does not sink in water or in swamps, he can walk on thorns etc., and can die at will.

Udana is the name of the nerve current that governs the lungs and all the upper parts of the body, and when he is master of it, he becomes light in weight. He does not sink in water; he can walk on thorns and sword blades, and stand in fire, and can depart this life whenever he likes.

समानजयात् प्रज्वलनम् ॥४१॥