Tibetan Buddhists also use the sand mandala as a symbol of devotion

HH Dagchen Sakya Rinpoche Closing the Hevajra Mandala Lam Dre Tharlam Monastery Boudha Nepal
Originally uploaded by Wonderlane

Mandala (Sanskrit: "essence" + "having" or "containing", also translates as "circle-circumference" or "completion"), is a concentric diagram having spiritual and ritual significance in both Buddhism and Hinduism.[1][2]

The term is of Hindu origin and appears in the Rig Veda as the name of the sections of the work, but is also used in other Indian religions, particularly Buddhism.

In the Tibetan branch of Vajrayana Buddhism, mandalas have been developed into sandpainting.