Engraved with a layered set of sacred triangular diagrams, this ritual object, known as a yantra, would typically be found in a temple or sacred space and used as a focus for devotion. The series of intersecting lines create triangles that represent feminine and masculine energies in union. These commingling energies are surrounded by a lotus circle, a sea of blood, a ring of fire, and four T-shaped doorways symbolically resting on double vajras on the four sides of the yantra mandala. This object, blending both Hindu and Buddhist symbols, is a composition unique to the Kathmandu Valley.