This is a mega-thread for experienced psychonauts to share their top lessons and dos and don't when psychonauting. As I'm developing my new course I want to integrate any of your insights, lessons, tips, and wisdom which I may have overlooked or failed to encounter in my own experiences. So if you share ideas here I may integrate them as lessons into my new course. What are your top lessons when it comes to psychedelics and how to use them most effectively and safely? What do you wish you'd have known before you started?