The Key of Life

The Ankh was the Egyptian hieroglyphic character that originally stood for the Egyptian word ˁnḫ "mirror" or "image", but gradually became used to represent the word "life". Deities are often portrayed carrying it by its loop, or bearing one in each hand, arms crossed over their chest. It is also known as the Egyptian Cross, the key of life, or as crux ansata, Latin for "cross with a handle". It has been taken as a symbol by many Neopagans.

-taken from Wikipedia.