The first time I saw this film I sat in front of the TV and watched it like I had been hypnotized. The animation technique and the colours are breathtaking and I really, really wish I had seen it on the big screen. I'm sure the experience would have been sublime.
This is the kind if film that leaves the viewer (unless she/he is totally insensitive) full of awe and wonder at the determination shown by the protagonist, who, in the course of a lifetime, plants a forest.
Whether you view it as a simple and beautiful story about planting trees and loving nature, or as a fable with a deeper meaning, this film is absolutely wonderful.
I would buy it in a heartbeat if it ever came out on DVD.