In this book, a brief account of Yagna is presented. Scientific basis of the major effects of Yagna is discussed along with some findings of modern research on its effects on health care and purification of the environment. Psychological and spiritual benefits are also highlighted in brief.

1. Origin & Philosophical Foundations of Yagna - A Brief Introduction

Gayatri and Yagna are described as the pillars of Indian philosophy and culture. The eternal source of universal knowledge, comprised in the Gayatri Mantra is deciphered and the cosmic energy of sound contained in Mantra is activated and expanded with the help of Yagna. The four Vedas signify the philosophy of the eternity and absolute complementary role of Gayatri and Yagna in the divine creation. Atharvaveda also deals with sound therapy aspects of Mantras for the treatment of the ailing human system at the physical, psychological and spiritual levels. The Samaveda focuses on the musical chanting patterns of the Mantras and the subtle form of Yagna 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 principles and methods of performing Yagnas as Spiritual and Scientific experiments for global welfare [1].