[09.02.2012: Revival of this post as a collection of the most important symbols]
# The Circle
All creation / dimension / strong appearance in nature
# Star Tetrahedron
wikipedia / google pictures / article: universal fingerprint? / strong appearance in nature
# Hexagon
wikipedia / article: meaning of the hexagon / strong appearance in nature
# Sine Wave / Sine Curve
wikipedia / the universal run of things / strong appearance in physics
# Taijitu / Yin Yang
wikipedia / yin and yang wikipedia / the main symbol of dualism and therefore of maya
# Flower Of Life
wikipedia / google pictures / short article 1 / short article 2 / info #3 /
# Tree of Life / World Tree
wikipedia / info (kabbalah) / appearance in all world cultures and many mythologies
# The Third Eye / The Chakras
important in all spiritual practices / symbol of awakening and connection with the spirit world
# The Eight Point Star
article about meaning and appearance /
# Uroboros
wikipedia /
# The Golden Spiral
wikipedia /
# The Mountain
ref 1 /
Misc Links
http://symboldictionary.net/
http://symbolism.org/index.html
http://en.wikipedia.org/wiki/Sacred_geometry
http://www.crystalinks.com/sacred_geometry.html
...
