Well, that might *not* be so common. Evidence suggests that hallucinations from schizophrenia are [shaped by culture](https://news.stanford.edu/2014/07/16/voices-culture-luhrmann-071614/). Because we in the west share a lot of similar culture – in particular, Christianity, and the notion that there are evil Bad Things out to steal your immortal soul – we are more inclined to hallucinate harmful or demonic visions.
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