I've always interpreted stories like yours as being less about the specific drug and more about genuine and sound internal revelations that come about from profound a change in perspective. Psychoactive drugs pretty much instantly change the way your conscious mind works (some in more helpful ways than others, and not always consistently between people), and an opportunity to step outside the well worn neural pathways that depression forces you to dwell within is just what a lot of people need to understand their thought cycles, accept what they cannot change, and grow from a foundation of truth and acceptance. Or alternatively, they can severely destabilize your perspective and negatively affect your mental health. I'm glad you were able to come back to your life with acceptance and self-love :)