Saying this album, Tool's third, is a mind trip is an understatement. "Aenima" is utterly genius, and is arguably Tool's best album to date. It doesn't matter what genre this is (smart metal, intricate metal, math metal or alt metal), because it is, in my opinion, one of the 50 best and smartest C.D.'s ever released. It's flawless, and if I've ever heard a C.D. which is worthy of a five-star review, this is it.