Yajna is a Vedic ritual of offerings accompanied by chanting of Vedic mantras. It is performed to invoke divine blessings and maintain harmony in the universe. The offerings, which can include ghee, grains, and herbs, are made into a sacred fire, symbolizing the connection between the physical and spiritual realms. The practice of yajna is rooted in ancient Indian traditions and is often conducted during important life events or festivals. It is believed to purify the environment and promote well-being, fostering a sense of community and spiritual growth among participants.