Through that called Udana one passes exertion and is enabled to speak by virtue of its going through (the lungs, the throat, and the mouth). These are the five sorts of vital airs that cause an embodied creature to live and Imove.
उदानादुच्छ्वसिति च प्रतिभेदाच्च भाषते। इत्येते वायवः पञ्च चेश्यन्तीह देहिनम्॥