The sun is usually seen as a masculine symbol and the moon and the earth as feminine symbols, hence you will often the Sun symbolically paired with the Moon or the Earth. For many millennia the Sun was believed to be at the center of the Universe, around which all other heavenly bodies radiated. The Sun was a symbol of both royal and divine powers, adopted by both secular and religious authorities. As a tattoo design and symbol, a Sun represents fertility, vitality, passion, courage and eternally renewed youth, light and knowledge.