The "ANKH" is an ancient Kemetian(Egyptian) symbol that has many multi dimensional meanings. Like all geometric symbols the depth behind Ankh can be defined on many levels. Whether it's physical, biological, scientific, or metaphysical.

On each level you will find that "The Evolution of All Life" is birthed through polarity & contrast: masculine & feminine, Yin & Yang, electricity & magnetism, light & dark, circles & squares, ect...
Polarity/Contrast creates friction, friction creates energy, energy creates movement, movement creates space, space creates time, time creates growth/evolution. This is the purpose & cycle of life.