The Aztecs had a very complex religious structure. Human sacrifice played a large role in religion. All sacrifices were dedicated to the sun, which was said to set the stage for the act. During sacrifice, a chest incision was made and the heart was torn out. The heart, while still palpitating was offered to the god. Children were drowned and offered to the god Tlaloc. Their tears were said to serve as a good omen for rain. Sacrifices were very important and were always preformed by priests. Acts of cannibalism also took place in Aztec society. Music and dance were means of religion, as many of the dances preformed were dedicated to gods.