It is generally believed that this dhāraṇī has no direct relationship with the The Great Compassion Mantra in Mahayana Buddhism.
Some people believe that this dhāraṇī is told by the Eleven-Faced Avalokitesvara, an esoteric bodhisattva in Tibetan Buddhism, and that it is the equivalent Tibetan version of The Great Compassion Mantra in Mahayana Buddhism.