The article considers the little-studied topic of reflection of the light-bearing nature of the Absolute in sacral art. The author analyzes Buddhist texts relating of light substance as an immanent quality of enlightened beings (Buddha, bodhisattva) and the visual reflection of the phenomenon in question in the iconographic and image context. Referring to the principles of analysis applied by art studies to sacral works of Buddhism, the author introduces a new notion, i. e. light-form which establishes a connection between the characteristics of the sacral world in Buddhism and their embodiment in the plastic forms of art.