My teacher would, and has, yes. But I wouldn’t advise anyone to do that, or even get into that situation in a hippy dippy setting with a bunch of dreadlocked “t

My teacher would, and has, yes. But I wouldn’t advise anyone to do that, or even get into that situation in a hippy dippy setting with a bunch of dreadlocked “teachers” who have studied just one aspect of the Buddhist tradition from deepak chopra, no. The stuff that comes up, including the hallucinations, are brought to the surface through your practice, but they are not caused by it. The only way to deal with them is with an experienced teacher, therapist or with self discipline (the latter i only include as seemingly this is what shakyamuni apparently did). Everyone is different, I agree, but sitting with inexperienced people and expecting some enlightenment experience is definitely going to go wrong for you.