Complex sentence: After the fourth sun was destroyed, the gods gathered to choose a god to become the new sun. Tecuciztecatl, a boastful and proud god, offered himself for sacrifice; the other gods favored Nanahuatzin, the smallest and humblest god.
Split into simpler sentences: After the fourth sun was destroyed the gods gathered to choose a god to become the new sun. Tecuciztecatl, a boastful and proud god, offered himself up for sacrifice. However, the rest of gods favored Nanahuatzin, the smallest and humblest god.