There's actually a forum for discussing this stuff, FYI for the future.
LSD | Mushrooms | Acid | Hallucinatory Substances
And yes Salvia will fuck you up but it's not very fun and it only lasts for maybe 15 mins at the most, usually more like 5 or 10. Think of the most fucked up acid trip you could ever possibly have then multiply that times 1,000. That's when you do it hardcore though, with a butane lighter or best of all a vaporizer. You will think you went to another world. You'll see in multiple diminsions. You'll learn new languages and meet strange foreign beings. Or you'll just trip really bad and freak out. But only for a few mins.
So, not worth it if you've done it before but worth doing once.