Salvia is fucking crazy, the high only lasts about 4-5 minutes but you trip hardcore. You hallucinate, and sweat a lot also. Make sure you can sit down while you do it.
I call bullshit on whoever saids they tripped for hours on it. I have done it and know it only lasts a short time.
edit: warning: prolonged use of salvia can cause you to go into a coma.
http://www.erowid.org/plants/salvia/salvia.shtml
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Often times I wonder why
There's love and hate, theres live or die.
When sickness comes I must decide:
When feelings go, theres suicide.