Can magic mushrooms cure depression? This documentary follows the first medical trial to explore the use of psilocybin as a treatment for clinical depression.
www.netflix.com
This is worth a watch. Some of the breakthroughs people have look a bit horrifying - but the after effect seems to be a (sadly often quite temporary) rebirth, revitalisation, a psychic burden lifted.
Really makes me think I've only dipped my pinky toe into psychedelic experiences. And this method of therapy, at least, seems to depend upon confronting things you don't wish to. (It's not sitting in a field thinking the world is miraculous.)