This Australian stamp commemorates cave art which was created thousand of years ago during the last Ice Age and is known as Paleolithic art. The Dreamtime is the central, unifying theme in Australian Aboriginal mythology,consisting of four aspects: The beginning of all things; the life and influence of the ancestors; the way of life and death; and sources of power in life. Dreamtime consists of all four of these aspects at the same time because it is a condition beyond time and space where all things exist at once.