Diné Bahaneʼ (Navajo: "Story of the People"), the Navajo creation story, describes the prehistoric emergence of the Navajos, and centers on the area known as the Dinétah, the traditional homeland of the Navajo people. This story forms the basis for the traditional Navajo way of life. The basic outline of Diné Bahaneʼ begins with the Niłchʼi Diyin (Holy Wind) being created, the mists of lights which arose through the darkness to animate and bring purpose to the myriad Diyin Dineʼé (Holy People), supernatural and sacred in the different three lower worlds. All these things were spiritually created in the time before the earth existed and the physical aspect of humans did not exist yet, but the spiritual did.
The First World was small and centered on an island floating in a the middle of four seas. The inhabitants of the first world were Diyin Dineʼé, Coyote, mist beings and various insect people. The supernatural beings First Woman and First Man came into existence here and met for the first time after seeing each other's fire. The various beings started fighting with one another and departed by flying out an opening in the east.
They journeyed to the Second World, Niʼ Hodootłʼizh, which was inhabited by various blue-gray furred mammals and various birds, including blue swallows. The beings from the First World offended Swallow Chief, Táshchózhii, and they were asked to leave. First Man created a wand of jet and other materials to allow the people to walk upon it up into the next world through an opening in the south.
In the Third World, Niʼ Hałtsooí, there were two rivers that formed a cross and the Sacred Mountains but there was still no sun. More animal people lived here too. This time it was not discord among the people that drove them away but a great flood caused by Tééhoołtsódii when Coyote stole her child.
When the people arrived in The Fourth World, Niʼ Hodisxǫs, it was covered in water and there were monsters (naayééʼ) living here. The Sacred Mountains were re-formed from soil taken from the original mountains in the Second World. First Man, First Woman, and the Holy People created the sun, moon, seasons, and stars. It was here that true death came into existence via Coyote tossing a stone into a lake and declaring that if it sank then the dead would go back to the previous world.
The first human born in the Fourth World is Asdzą́ą́ Nádleehé who, in turn, gives birth to the Hero Twins called Naayééʼ Neizghání and Tóbájíshchíní. The twins have many adventures in which they helped to rid the world of various monsters. Multiple batches of modern humans were created a number of times in the Fourth World and the Diyin Dineʼé gave them ceremonies which are still practiced today.
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... Jóhonaaʼéí, the Sun, entered and greeted the twins ... To Naayééʼ Neizghání he said, "My son, have you slain all the enemies of the people?" Naayééʼ Neizghání replied, "Those who should die I have killed ...