This is a masterpiece in every sense of the word...Tool has created some of the most original and deep music in rock history and this will most likely be the album that will be known as their masterpiece...easier to get into than Lateralus but more difficult than Undertow...many people who listen to this album for the first time won't know what to think, but once the music starts to make sense and the whole thing clicks, you're going to be in for the ride of your permanently altered life...