Creation is believed to be the work of culture heroes who travelled across a formless land, creating sacred sites and significant places of interest in their travels. In this way, “songlines” (or Yiri in the Warlpiri language) were established, some of which could travel right across Australia, through as many as six to ten different language groupings. The dreaming and travelling trails of the Spirit Beings are the songlines.

Source: Dreamtime – Wikipedia