 Enraged at his arrogance, the god of dawn and the planet Venus, Tlahuizcalpantecuhtli, shoots an arrow at the sun.However, the dart misses its mark and the sun throws his own back at the morning star, piercing the Lord of Dawn through the head.At this moment, Tlahuizcalpantecuhtli is transformed into the god of obsidian stone and coldness, Itztlacoliuhqui.