Tree Of Life symbol has branches above mirroring roots underneath. It means "As above so below". Roots are buried in earth as branches reach the sky. The tree represents the human and as the branches extend up it represents human spirituality as it grows to become one with the heavens. The roots also represent developing a bond with earth as they grow into the ground. Combining this creates the concept of oneness. Everything is connected to everything else by the life force called spirit.