Brahma Sūtra 4.1.2

An indicatory mark also gives to understand that repetition is required. For, in the section treating of meditation on the udgitha, the text rejects …

Inferential mark here means Smriti. Smriti also declares that that knowledge which effects Release is of the nature of continued representation. Meditation therefore has …

For the following and the like passages also indicate the necessity for repeated meditation, etc. “He (Bhrigu) performed the meditation ..and again ap- proached …