Not LSD but another psychedelic gave me:
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The most intense scary experience of my life and the believe i was in a state of shock and dying.
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The most intense beautiful experience of my life and the believe i was part of the never-dying fabric of space time.
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Made me forget who i was, to help me understand who i am.
All of this in like a single 20 minutes of time after which everything was (sort of) normal again.
I can only recommend if you fully consent and do not fear the unknown.
Yup, i have been thinking of joining one myself because also it’s hard to find good local information and those people probably know exactly where when and from where to look.