Stumbled to this interesting topic of a man called Robert Monroe. He documented hundreds of out-of-body journeys, and declassified files reveal that U.S. intelligence wanted to know exactly how he did it.
Here is the CIA document about the studies:
Stumbled to this interesting topic of a man called Robert Monroe. He documented hundreds of out-of-body journeys, and declassified files reveal that U.S. intelligence wanted to know exactly how he did it.
Here is the CIA document about the studies: