Mention of Agnihotra is found in Vedas, the ancient most knowledge source, known to mankind. The Vedic sciences like Yoga, Ayurvea, Agnihotra, etc practiced by Rishis or Seers are techniques which create harmony between our Mind, Body and Spirit.
H. H. Paramsadguru Shree Gajanan Maharaj referred to as Shree by His followers spread all over the world, revived this technique in the modern era, from Shivpuri, India and spread this message all over the world. Agnihotra, according to Vedas, is the ancient most Upasana or a process of creating oneness between our consciousness and Universal consciousness. Practicing Agnihotra has a positive influence on body, mind, soul, & environment; and sets us on the path to attain inner balance & spiritual bliss.
Agnihotra is a purifying, healing phenomenon. Fire is known to benefit life on earth because of its ability to episodically burn solids and liquids into life enhancing gases. The good gases released while performing Agnihotra are charged with high energy and benefit human lives and other life forms in the environment.