I've done salvia maybe 20 times. To me is a very strong sense of being pulled backwards into some alternate reality. In a literal, physical way. Visuals are, for me at least, wild distortions of object and particularly distance. I never see things that aren't there, many people do. But then I have difficulty remembering to keep my eyes open. Also a hot, tingly pressure against my skin that I find unpleasent. Definately some wild shit. Half the fun is watching someone try it for the first time. They never can believe they tripped so hard off a legal herb. Only thing more intense, IMO, is 5meo-dmt