All activities in the limitless expansion of the universe are said to have generated from a grand eternal Yajna(Yagya). Atharva Veda (9.15.14) describes Yagya as: Ayam Yajna Vishvasya Bhuvanasya Nabheehiâ implying Yagya as the fundamental process of manifestation of nature.

In physical terms, Yagya (homam, havan or agnihotra) is a process of herbal sacrifices in holy fire aimed at the finest utilization of the subtle properties of sacrificed matter with the help of the thermal energy of fire and the sound energy of the mantras. Modern scientific research has also shown significant therapeutic applications of Yagya and also affirmed its potential in purification of environment.

Literally speaking, Yagya means - selfless sacrifice for noble purposes. Sacrificing ego, selfishness and material attachments and adopting rational thinking, humane compassion and dedicated creativity for the welfare of all - is indeed the best Yagya which should be performed by all human beings. The philosophy of Yagya teaches a way of living in the society in harmony, a living style to promote and protect higher humane values in the society - which is indeed the basis of the ideal human culture.