Discussion on meditation induced psychosis and some a bit more metadiscussion on how it is perceived by pro-meditation groups - victim blaming (eg. you're doing it wrong, this didn't happen to me, this isn't meditation). Seeing some similar comments in here. Some areas of meditation actually acknowledge some sort of "dark night" that practitioners have to push through which caused a mental breakdown in the author.
Just because I've done LSD multiple times without psychosis, doesn't mean that LSD can't cause psychosis in some people. I believe it is the same with meditation. As much as some think meditation is beneficial, the effective sample size is 1.