Ancient Indian Education (Brahmanical and Buddhist) c16.181

c16.181

4. **Nidrā.** *Nidrā* is 'lapse of consciousness, sleep'. *Nidrā* or sleep is also a form of mental activity, because its results or effects can be recalled after sleep. Otherwise, "how can one reflect thus in the waking state? I have slept well, my mind is at ease, it makes my understanding clear. Or, I have slept in deep stupor, I feel my limbs to be heavy, my mind is fatigued, not refreshed, it is languid, as if it does not exist." Therefore, Sleep is a kind of presented idea (*pratyaya*) or experience (*anubhava*) and is to be considered as a *Chitta-vṛitti* and, as such, is to be resisted in *Samādhi*.