The individual at hand perhaps cares what kind of mindset they have at that point...if LSD can make it a little easier less scary to pass on into death, while getting the most out of the little bit of time you have left....why not give it to them? I did watch a documentary a while back that was talking about some studies where they've used psilocybin(otherwise known as the chemical in psychedelic mushrooms) to help terminal cancer patients deal with the mental turmoil and give them a greater appreciation and enjoyment of time they had left.

Though I think such things have therapeutic benefit outside of dying terminal illness patients...however not to say they are not without risk, ingesting such substances in the wrong setting or around negative/bad vibes can make for an unpleasant trip and in the midst of an unpleasant trip one could potentially act out dangerously....but as far as toxicity LSD has very low toxicity.