“Tjindara” - The parallel lines are the rows and rows of high sandhills, over which Linda walked in 1945, to reach Haasts Bluff Misson in the East.
The Spirit image is the image on the wall of a rock cave at Tjindara. This place is in the Great Sandy Desert, deep into Western Australia from Lake MacKay on the WA - NT border. The image is of a spirit, seen by someone and painted on the wall, using bright red ochre. It is bright red and shiny, due to the leaching of silicone from the rock face. This fact has enabled scientist to estimate the age of the painting to be about 15,000 years. The symbol is not an Aboriginal one, so the painting was done by a person from somewhere else, some other country, and not from Australia. This question is similar to the one scientist are working on, with the alien Bradshaw paintings in the Top End, which are 17,000 years old.