Aitareya-Aranyaka: Third Aranyaka, Second Adhyâya, First Khanda
1. Sthavira Sakalya said that breath is the beam, and as the other beams rest on the house-beam, thus the eye, the ear, the mind, the speech, the senses, the body, the whole self rests on this breath.
2. Of that self the breathing is like the sibilants, the bones like the mutes, the marrow like the vowels, and the fourth part, flesh, blood, and the rest, like the semivowels,—so said Hrasva Mandukeya.
3. To us it was said to be a triad only.
4. Of that triad, viz. bones, marrow, and joints, there are 360 (parts) on this side (the right), and 360 on that side (the left). They make 720 together, and 720 are the days and nights of the year. Thus that self which consists of sight, hearing, metre, mind, and speech is like unto the days.
5. He who thus knows this self, which consists of sight, hearing, metre, mind, and speech, as like unto the days, obtains union, likeness, or nearness with the days, has sons and cattle, and lives his full age.