The four Veda s signify the philosophy of the eternity and absolute complementary role of Gayatri and Yagya in the divine creation. Atharva veda deals with sound therapy aspects of Mantras for the treatment of the ailing human system at the physical, psychological and spiritual levels. The Sama veda focuses on the musical chanting patterns of the Mantras and the subtle form of Yagya by defining the latter as the process of mental oblation on the surface of internal emotions through the cosmic radiation of the omnipresent subtle energy of sound. The Yajurveda contains the knowledge of the principles and methods of performing Yagyas as part of spiritual and scientific experiments for global welfare. Ancient scriptures of Hindu philosophy affirm Yagya as one of the twenty-four divine incarnations. Performing Yagya on small scale as homam, agnihotra or havan is an integral part of every religious ritual and social rite of auspicious nature.