Just intensifies the trip...or mellows it out.....

Basically, while you're tripping, you could take anything ( to an extent) and think it will have a certain affect on you, and it will.

One night I dropped 4 hits and went through about 7 blunts (don't ask me how I rolled them, I don't know). It was one of the craziest nights of my life....just because I had the mindset "man, I am tripping harder and harder ever minute"