Yōga Sūtra 4.27

तच्छिद्रेषु प्रत्ययान्तराणि संस्कारेभ्यः।

tacchidrēṣu pratyayāntarāṇi saṁskārēbhyaḥ।

[तत् छिद्रेषु प्रत्यय अन्तराणि संस्कारेभ्यः।
tat = that (deep discriminative knowledge); chidrēṣu = when broken to pieces; pratyaya = the faith / ideas; antarāṇi = during intervals; saṁskārēbhyaḥ = due to past imprints;]

But that (flow of discriminative knowledge) is broken, in the intervals, because of past imprints.