This is something that I have suddenly become extremely interested in as an aid to magic, meditation, etc.
It involves taking very small doses of Psychedelics on a regular basis. I have done the “heroic” doses in the past and all you can do is hold on tight and wait for the ride to come to a complete stop. Lol.
I recommend you Google the term and check out YouTube also.
If anybody here has some knowledge on this subject as it relates to magic, please speak up!