The ancient science of bio-energy given through Vedas describes certain energy processes which have the power to effect a change in the functioning of PRANA (life-force which pulsates through us and connects us with the cosmos). These energy processes come under the category of YAJNYA.

AGNIHOTRA, tuned to the biorhythm of sunrise/sunset is the basic YAJNYA which any person can perform with only a little effort. There are Yajnyas to be done at the juncture of two seasons when there is a climate change. There are medicinal Yajnyas (HOMAS).

Yajnya is the science of purification of the atmosphere through the agency of fire given through Vedas, the ancientmost body of knowledge known to humankind.

Agnihotra is the basic Yajnya. This science is now presented as HOMA Therapy. The terms HOMA and Yajnya are used synonymously here.