Guljarrina shows part of a Dreamtime story from the country near Tableland Station. In the Dreamtime, two children, a boy and a girl, got lost in the bush. They could not find their mob and came across a group of Nginduwany, which are evil beings that can change their shape from that of a man to a tree.
The Nginduwany saw the children and their leader said, "Nyinganju guljarrina", which meant "You can have a try now". The other Nginduwany had a go throwing their boomerangs at the children. At first they missed, but eventually they got the children in the ribs with the boomerangs.
The outside part of the two semicircles represent the two boomerangs.