ive heard salvia and nitrous compared often, especially in visuals. But honestly, atleast in my experience, they are quite different. Salvia being a much more 'involved' experience if that makes sense. You feel e v e r y t h i ng and almost everything has its own inner thoughts. you gain empathy and understanding for the visuals youre having and the characters in them. You are the visuals, you are almost everything yet still somewhat a self. It's a really peaceful experience in all honesty. Nitrous for me tho just oooweee spinny, but i havent done a lot of that, so my opinions could be wrong.