In Aztec creation myths, the world is believed to have been created by the god Tezcatlipoca and others through a series of transformative cycles. Initially, there were multiple worlds that were destroyed. The current world is said to have emerged from the struggle between gods, culminating in the shedding of blood and sacrifice. This narrative conveys themes of creation, destruction, and rebirth, reflecting the cyclical nature of existence and the importance of rituals and offerings in Aztec culture.