This mantra is especially related to the 4-armed Shadakshari kind of Avalokiteśvara. The Dalai Lama is claimed to generally be an incarnation of Avalokiteshvara, and Hence the mantra is especially revered by his devotees. The mantras are drawn from your Vairocanābhisaṃbodhi Sūtra. The mantra for each deity identify in Japanese, https://freekundli38260.bloginwi.com/64940093/the-smart-trick-of-mantra-that-nobody-is-discussing