Ayanamsa systems are used in both Vedic and Western sidereal astrology. Sanskrit was the language used to impart the Vedic education system. They were known to speak the earliest form of Prakrit or Vedic Sanskrit vernacular. Some similar ideas appear in the Vedic and Hindu cosmologies. Thus, it is one of the most used holy elements in Hindu and Vedic societies. Tian may also be compared to the "Brahman" of Hindu and Vedic traditions. In Agamic schools of Hinduism, the Vedic literature and the Agamas are equally authoritative. In later vedic texts, Shiva becomes a deity. Krishna is the descendant of Yadu from Vedic tribe. It finds mention as the center of Vedic Dharma. Mandodari and Ravana are soon married with Vedic rites. Agni is one of the most important of the Vedic gods. The Maharishi proclaimed 1981 as the Year of Vedic Science. Bhargava gives a count of the word usage for every Vedic deity. Ahimsa as an ethical concept evolved in Vedic texts.