Kundalini  widely known to Ancient Aborigines - From the book  Voices of the first day
Aboriginal Spirituality lesson
Words like kangaroo and Dreamtime are not aboriginal words.
Thus sleepwalking materialist  missionaries  and researchers have lttle hope of understanding gnostic aboriginals and explaining them to white culture.  This Elkin fellow succeeeds fairly well via comparison with  spiritual adepts of Tibet and India. Bottom of the second page an aboriginal elder describes the plight of the white man. He just "knows"
An example of the  nearly insuperable language barrier is given at the link. They try to explain  just one word "Dreamtime"