Type of art practiced among the Navajo and Pueblo Indians and among Tibetan Buddhists. Sandpaintings are stylized, symbolic pictures (in Tibet, mandalas) prepared by trickling small quantities of crushed, coloured sandstone, charcoal, or pollen on a background of clean smoothed sand. The pictures may include representations of deities, cosmic worlds, animals, lightning, rainbows, plants, and other symbols described in chants that accompany various religious and healing rites