How does it work though? Not desiring to try it. Just curious.
think of reality as a program built on a code. eg in islam 'the code' is called 'The divine book' containing 'the record of all things'.
think of the material world as a user interface we experience through sense perception.
consciousness can be shifted into the program itself in any part of it we like, but you have to dull the senses and awaken inner senses, what they call 'sixth sense perception'.
most of us already have some degree of sixth sense perception but it's barely understood. you know like when you have a gut feeling about something?
it's basically no different to being conscious in the dream state.
the other thing is, the brain has evolved as has what is called the reptilian part of the brain that deals with control/territorial behaviour, aggression etc. no matter what, that will always be part of human nature..but when that part of the brain dominates us it reflects in our metaphysical experiences. it's why people end up seeing gremlins and reptilian type entities that are aggressive and the problem there is when they get exposed tot hose experiences they only magnify. then people have to go through 'grounding' and there's a lot of info on people wishing they'd never opened themselves up when they werent ready.
for that reason id recommend you also avoid it.