While I also believe that they can have beneficial effects, and that research shouldn't be stopped, at the same time it's worth keeping in mind the side-effects:
https://en.wikipedia.org/wiki/LSD#Potential_adverse_effects
Have you experienced any?
https://en.wikipedia.org/wiki/LSD#Potential_adverse_effects
Have you experienced any?
That said, I don't want to dismiss the potential for adverse effects! LSD is a serious tool. It basically gives you the ability to bypass and/or rewrite elements of your brain's BIOS, which is just as powerful and potentially dangerous as it sounds. I can appreciate the possibility for harm if your environment, mental state, or chemistry go awry. It is dangerous to take LSD in a potentially hostile environment where you don't have adequate support, or if you are prone to certain types of anxiety or confusion. There are plenty of people who should probably never take it; personally, I don't recommend it to anyone who isn't already fairly comfortable with observing and controlling their own mind through introspection and/or meditation.
What does it mean? Is it possible to convince your brain to "choose" different sexuality, for example, while high on psycs?