Note 443 — Chapter XV · THE PATANJALI-DARSÁNA.

This refers to a peculiar tenet of Hindu mysticism, that each involuntary inspiration and expiration constitutes a mantra, as their sound expresses the word so'haṃ (i.e., haṃsaḥ), "I am he." This mantra is repeated 21,600 times in every twenty-four hours; it is called the ajapámantra, i.e., the mantra uttered without voluntary muttering.