Verse 81

एतावच्चेतसो जन्म बीजं संसारभूतये ।संकल्पोन्मुखतां यातः संविदो वा किलात्मनः

In plain words

This alone is the birth of cetas, the very seed of saṃsāra's coming to be: the turning toward saṃkalpa of saṃvit — or, indeed, of the ātman.