Back in the day when I was considerably less educated in the occult than I am now (not that I’m an expert now by any means though ) I embarked on an entheogenic excursion and summoned an entity that ended up “inhabiting” my friend that was with me at the time. Didn’t summon anyone specific, nor did I banish beforehand or test the entity that arrived–I simply asked for Power and pushed the manifestation of the entity into reality via my Manipura chakra.
When it arrived, I got the impression of something that could use multiple humans simultaneously as puppets to peer out into the world and do its bidding, sorta like how a single security guard at a store can look through multiple cameras at once. As I had had no practical experience with entities before this, I assumed I was hot shit and proceeded to make a pact via telepathic communication without any indication of what it was I was putting up in exchange for this power, and without any specifics as far as what I would gain from the transaction.
Long story short, I eventually ended up realizing that I had done a pretty retarded thing and that the entity (whatever it was) was just feeding off my energy without giving anything in return. After constant dreams with repetitive motifs of being controlled/puppeteered & spiders, not to mention the energy drain and other resulting havoc that ensued in my life, I finally was able to exorcise myself of the entity attachment via an out-of-body experience on DMT.
tl;dr don’t make vague pacts with mysterious entities while on drugs, kids