Prabhamandala; Malla dynasty; Nepal or Tibet; 16th–17th century; Mercury-gilded copper alloy with red paint; 35.6 x 32.1 x 5.1 cm. Philadelphia Museum of Art, Pennsylvania

Literally meaning “circle of light”, it is an arch-shaped ornamental element that is installed behind idols in Hindu temples. Meant to symbolise divine radiance, it is often a detachable piece of metal or carved from stone.