The wisdom of Buddha, which is likened to the sun for its ability to illuminate the world and dispel ignorance; used in Buddhist texts like the 妙法莲华经 miào​fǎ​lián​huá​jīng (Lotus Sutra).

Huiri (680-748), an influential Tang dynasty monk and traveler who studied in India and Southeast Asia; he founded the Cimin school of Pure Land Buddhism and was honored by Emperor Xuanzong.