>>116416
That's a bit of a broad question. Pretty much any resource on psychonautics will do. There was never a definitive text on the subject that I worked off of, this is something I had my personal guides/gurus for. However, I can tell you that what helped me the most was to meditate on the nature of duality. My path on this was Taoist in nature but the premise ought to be the same: Whether something is one way or another depends upon how you interpret it. The stimuli is the same.
Being exposed to something extremely cold feels the same to your body as something extremely hot. Terror and ecstasy are the same sensation interpreted through a different lens. You can switch that lens. Take moments of terror, discomfort, any negative emotion as opportunities for you to practice. One practice which I find immensely useful–to the extent that I would 'identify' with this practice very strongly–is to actually write out a scenario in which you (in the third person, that part is important for various reasons!) undergo the exact same experience, but then write out that this character version of yourself interprets it differently, ideally, however works best for you. It could also work to write out the worst-case scenario or what actually happened if it was particularly bad, and to then rewrite it and compare the two, just so you get a good feeling for it. No joke, this is a powerful practice if you're honing a mystical/magical attitude, this will take you very far and was taught to me by multiple firsthand sources.
Let's say that the experience of being around clowns terrifies me. First, I can write out
"Anon just about shit himself from fear. He had never seen so many clowns in one place before, and he promised to himself that if he got out of this situation alive, he would burn the county fair and everyone in it until nothing remained but ash."
Then, I can write out
"Anon just about pissed himself from laughter. The experience of seeing someone at the nadir of their life experience made him feel immensely better about his own life. He thought back to when he had watched IT as a child, but come to think of it, wasn't Tim Curry also in the Wild Thornberrys? Now all he could think of was Pennywise saying 'Marianne, get the camera!' and with that, he choked on spittle, gasping for air between laughs."
I put some spin on it, it can be way simpler than that, but that's a simple, no-nonsense exercise to help you navigate your reinterpretation of the world.