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  1. On account of the scriptural statement of difference.

The prāṇa is everywhere spoken of as different from speech, &c. The passage, e.g. beginning with ‘They said to speech’ (Br̥. Up. I, 3, 2), enumerates speech, &c., which were overwhelmed by the evil of the Asuras, concludes thereupon the section treating of speech, &c., and then specially mentions the mukhya prāṇa as overcoming the Asuras, in the paragraph beginning ‘Then they said to the breath in the mouth.’

Other passages also referring to that difference may be quoted, so, for instance, ‘He made mind, speech, and breath for himself (Br̥. Up. I, 5, 3).

For this reason also the other prāṇas are different in being from the chief prāṇa

Another reason follows.