In Vajrayana Buddhism or Bon, a mandala refers to a cosmic abode of a deity, usually depicted as a diagram of a circle with an inscribed square that represents the deity enthroned in their palace, surrounded by members of their retinue. Mandalas can be painted, three-dimensional models, architectural structures, such as temples or stupas, or composed as arrangements of images within a temple. The instructions for creating and visualizing mandalas are usually found in ritual texts, such as tantras and sadhanas. Mandalas can be used in initiation ceremonies, visualized by a practitioner as part of deity yoga, consecrated and used to represent the divine presence within ritual space, offered to the deities as representations of the entire universe. A similar concept in Hinduism is a yantra.