Warning: These videos contain flashing lights. Use your judgement if you get epileptic attacks from flashing lights.

Amazing art project. Watching it actually changed my life in a way that I would never have believed possible from an animated video with essentially no dialogue. It could be seen as an aesthetically minimalistic and subtle psychedelic experience, and in my eyes it beautifully renders the essential elements of such experiences. Take 9 minutes to watch this in a dark room with good headphones on. I think you will be pleasantly surprised at how it moves you.

http://www.maxhattler.com/sync/

Much more information about the project and artist is available on the website.

Animations by UK collective "Treat", much less subtle but awesomely artistic in a different way:

An animation about a group of kids who discover a "mirror into the universe", as all of us at DMT-Nexus have, and experience a swift and unexpected gut check to their preconceptions of reality, as we all probably have.
http://vimeo.com/26856392

A really clever and funny animation about the great Dao, or Dharma, or whatever you care to call it dealing with some arrogant upstarts (hint- that's us).
http://vimeo.com/20595957

By the way, I got to all of these through a sweet website, http://thetripatorium.com/
Be warned, some of the videos on it are most certainly intended to cause bad trips by surprising you with disturbing stuff after an innocuous beginning. A lot of it is just awe-inspiring though. Enjoy, but let the viewer beware!