The effects used to be classified as a "model psychosis" in the 1950's by psychiatrists. That classification was simply dismissed by the government as it implied LSD had useful research properties: allowing individuals to experience the effects of mental illness for 8 hours and then sobering up.

The government was adamant that LSD and psychedelics had to have no legitimate medical or scientific value, and they had to be banned. To be fair they had escaped controlled use and were being used as "party drugs".

But anyway, it sure can be a hella scary and strange experience, and not always pleasant. Handle with care.