Dear Christians: is LSD use immoral?

[hmkpoker]

Let's say that a metally sound fellow (no meds, no mental problems) wants to use LSD for "mind-expanding" purposes. That is, experience things that he would not normally experience in the hope of altering his understanding of the world, be it for good or for bad.

Let's also say that LSD, in this consideration, is legal (I'd like legality not to interfere with the morality of this subject...if LSD's legal status affects your decision, substitute in a DiPT derivative, or some other legal hallucinogen)