Charles Gilchrest Sacred Geometry

Here is a really interesting and wise dude: Charles Gilchrest, He works with the Concepts of Sacred Geometry, Pi, Phi, Mandala's. Good Stuff

http://www.charlesgilchrist.com/SGEO/

http://www.youtube.com/watch?v=12m1FPheZa0&feature=c4-overview&playnext=1&list=TLjyJVf5sEOGk