Yoga Sutras of Patanjali Chapter 1 Verse 10
Original Verseअभावप्रत्ययालम्बना तमोवृत्तिर्निद्रा ॥ १.१० ॥
abhāvapratyayālambanā tamovṛttirnidrā || 1.10 ||
abhāvapratyayālambanā tamovṛttirnidrā || 1.10 ||
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Sleep is the mental modification which has the feeling of nothingness as its basis.
Sleep is the mental movement that rests on the experience of absence.