Viśuddhaprabhā Dhāraṇī

The Viśuddhaprabhā Dhāraṇī (Dhāraṇī of Pure Light), also known by its full title Raśmi-vimala-viśuddhaprabhā-dhāraṇī (The Dhāraṇī of the Pure Stainless Light Rays; Chinese: Wugou Jing Guang Da Tuoluoni 無垢淨光大陀羅尼, T 1024), is a Buddhist ritual text belonging to the dhāraṇī genre of protective and transformative formulas. This text is preserved in multiple versions and sutras within the Tibetan Kanjur and Chinese Buddhist canons. The dhāraṇī centers on the worship of Amitāyuṣ (the Buddha of Infinite Life) and the invocation of Viśuddhaprabhā (Pure Light), a goddess which personifies Amida's compassionate light. Its main function is the purification of karma, healing, the extension of lifespan (āyuṣ), and the assurance of rebirth in Sukhāvatī, Amida's Pure Land. This dhāraṇī was cited by the Japanese Pure Land Buddhist scholar Genshin as part of thirteen texts conducive to birth in the Pure Land.

The Viśuddhaprabhā Dhāraṇī became popular during the 8th century, and it quickly spread throughout East Asia due to the use of woodblock printing. It was widely employed in Korean Buddhism during the middle and late Silla (668-935), as well as in Japan during the same time. The Great Dhāraṇī Sūtra, a Korean copy of the Dhāraṇī, is considered to be one of the oldest printed texts in the world.