The Dhāraṇī of the Tathāgata Jñānolka
The Dhāraṇī of the Tathāgata Jñānolka opens with a description of a group of four tathāgatas and four bodhisattvas, who are seated in the celestial palace of the Sun and the Moon. The deities of the Sun and Moon return to their celestial palace from elsewhere and, seeing these tathāgatas and bodhisattvas, both wonder whether they might obtain a dhāraṇī that would allow them to dispel the darkness and shine a light upon all beings. The tathāgatas, perceiving the thoughts of the Sun and Moon, provide them with the first dhāraṇī in the text. The bodhisattva Samantabhadra then provides a second dhāraṇī and instructs the deities of the Sun and Moon to use it to free beings who are bound for rebirth in the lower realms—even those who have been born in the darkest depths of the Avīci hell.