vastu-purusha-mandala. The name is a composite Sanskrit word with three of the most important components of the plan. Mandala means circle, Purusha is universal essence at the core of Hindu tradition, while Vastu means the dwelling structure. The Vastu-purusha-mandala is a yantra, a design laying out a Hindu temple in a symmetrical, self-repeating structure derived from central beliefs, myths, cardinality and mathematical principles. The four cardinal directions help create the axis of a Hindu temple, around which is formed a perfect square in the space available. The circle of the mandala circumscribes the square. The square is considered divine for its perfection and as a symbolic product of knowledge and human thought, while the circle is considered earthly, human and observed in everyday life (moon, sun, horizon, water drop, rainbow). Each supports the other. The square is divided into perfect 64 (or in some cases 81) sub-squares called padas. Each pada is conceptually assigned to a symbolic element, sometimes in the form of a deity. The central square(s) of the 64- or 81-grid is dedicated to Brahman (not to be confused with brahmin, the scholarly and priestly class in India), and are called Brahma padas. The 49-grid design is called Sthandila and is of great importance in creative expressions of Hindu temples in South India, particularly in Prakaras. The symmetric Vastu-purusa-mandala grids are sometimes combined to form a temple superstructure with two or more attached squares. The temples face sunrise, and the entrance for the devotee is typically this east side. The mandala pada facing sunrise is dedicated to Surya, the sun-god. The Surya pada is flanked by the padas of Satya, the deity of Truth, on one side and Indra, the king of the demigods, on other. The east and north faces of most temples feature a mix of gods and demigods; while the west and south feature demons and demigods related to the underworld. This vastu-purusha-mandala plan and symbolism is systematically seen in ancient Hindu temples on the Indian subcontinent as well as those in southeast Asia, with regional creativity and variations. Beneath the mandala's central square(s) is the space for the all-pervasive, all-connecting Universal Spirit, the highest reality, the purusha. This space is sometimes known as the garbha-griya (literally, “womb house”) – a small, perfect square, windowless, enclosed space without ornamentation that represents universal essence. In or near this space is typically a cult image — which,