Sleep deprivation practice is an actual thing that many russians practices.
I have watched few of the videos and they constantly mention about "indian yogis who never sleep"
I have never seen a single yogi who never sleeps.
Also, the reason why some russians practice is to experience the natural high and higher form of awareness
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I will try it. I usually do meditation but I think I am doing it wrong because nothing is happening.
I was hoping for at least photographic memory.