Garn'giny Ngarranggarni represents senior Gija artist Mabel Juli’s main dreaming: the moon dreaming. Describing the movements of the ancestors as they emerged from the land and formed its many features, the Ngarranggarni (Dreaming) underpins Gija law and culture and is upheld through song, dance and painting. As related in the publication Garnkiny: Constellations of Meaning, Warmun Art Centre, Warmun, Western Australia, 2014: " In the Ngarranggarni, Garn'giny, he moon, is a man. After hunting kangaroo one day he was resting in a riverbed when he caught site of a beautiful woman with long black hair and fell immediately in love. She was Dawool, the black-headed snake, but she was also of Garn,giny's mother-in-law’s skin and so a relationship between them was forbidden. When the old people asked him who he would marry and he pointed to Dawool, they told him that she was his mother-in-law and that she had given her daughter as his wife. The old people sent Garn'giny away, and angrily he left. ‘They made him feel shame then’, Juli explains. ‘He climbed up high on the side of the hill [and] looked down … at all the old men and women sitting below.’ He cursed the people for not allowing him to marry Dawool, telling them they were going to die, but that he would always live. And so he ‘always appears as the new moon in the west. He dies for three days … rests for a little while and then climbs up’.

As described by Sydney's Museum of Contemporary Art which holds a number of Mabel Juli's work and has featured it in a number of exhibitions "Juli’s deep connection to Garn'giny Ngarranggarni is often represented in her paintings by reduced imagery surrounded by deep black, yellow or brown ochre,- which provides not just a setting for the story but a metaphor for the banishment of Garn'giny, evoking the deep isolation he felt."