Sapna means dreaming. Sushupti means deep sleep. All the knowers and knowables in this world are here right now. This is your waking state. Yo external world is forgotten, that your physical body is lying on the bed and sleeping. That's forgotten entirely in your mind. Waking and dreams are all erased in the blankness of deep sleep. When you wake up as another individual, is is a waker, you're still the same person. So it was all there. It's like a computer which was in hibernation. All data is there. Its weating. Deep sleep is nothing, but it is actually the source into which everything is mer