Yōga Sūtra 3.10

तस्य प्रशान्तवाहिता संस्कारात्।

tasya praśāntavāhitā saṁskārāt।

[तस्य प्रशान्त वाहिता संस्कारात्।
tasya = because of it; praśānta = becomes peaceful; vāhitā = flow; saṁskārāt = emerging from previous imprints;]

Because of it (Effect-of-Restraint) it (consciousness) becomes peaceful flow, emerging from previous imprints.