I can’t speak for the person you are talking to, but I feel the same way he does so I think I can help explain. I don’t depend on psychedelics on an ongoing basis. They taught me how to think in a different way. They are part of my education.

I’ve seen the damage that drug addiction can do, so I understand your caution. But they are nothing like addictive depressants or stimulants. The drugs are actually somewhat unpleasant while the effects take told, and you feel better from the after-effects when they wear off. You also get a lot of tolerance after a single dose. This means that the compulsive redosing behavior that leads to dependence simply doesn’t happen.

You hit the nail on the head. Once you've "gotten it", you don't need to continually re-dose psychs. You always carry a piece of the experience with you.