Temple construction in India started nearly 2000 years ago. The oldest temples that were built of brick and wood no longer exist. Stone later became the preferred material. Temples marked the transition of Hinduism from the Vedic religion of ritual sacrifices to a religion of Bhakti or love and devotion to a personal deity. Temple construction and mode of worship is governed by ancient Sanskrit scriptures called agamas, of which there are several, which deal with individual deities. There are substantial differences in architecture, customs, rituals and traditions in temples in different parts of India. During the ritual consecration of a temple, the presence of the universal all-encompassing Brahman is invoked into the main stone deity of the temple, through ritual, thereby making the deity and the temple sacred and divine