Despite my reverence for this film, there isn't much I can say about it. It is one of those films that I find difficult to describe to people who haven't seen it before. I recommend it, but I don't know if I can say anything else about it other than I think it is ineffable to a degree. It's a film about philosophy, but it's not a documentary. It's a film about a journey, but it's not exactly a cohesive story. It's animated, but it's rotoscoped so there's life action under the sketches and inking.
It is a film that truly feels like a dream. You enter into it completely lost in what, if anything, is going on. It jumps around, but not so much that you lose the little footing you have. The main character sort of floats through different scenes and we, as an audience, go along with it. There's not necessarily a rhyme or reason to the plot movement, but it doesn't have to be...because it's a dream. Stuff will occur and things will be said that you'll barely remember (not unlike a real dream), but the more you watch it the more you pick up. My advice? Watch it a few times before you pass final judgement on it.