Deep Sleep (Suṣupti)

Suṣupti is dreamless deep sleep — the state in which both the outer world and the inner dream-world fall away, leaving a quiet, undivided rest. There are no objects here and no images, only a peaceful near-blankness; yet one wakes saying 'I slept well,' so some awareness must have been present. The contemplative traditions take this as a vital clue: a taste of consciousness without objects, though still veiled by a kind of unknowing.