Yajna

In Hinduism, Yajña or Yagna (Sanskrit: यज्ञ, lit. 'act of devotion, worship, offering in fire', IAST: yajña), also known as Havana in modern contexts, is a ritual done in front of a sacred fire (agni), often with mantras. Yajna has been a Vedic tradition, described in a layer of Vedic literature called the Brahmanas, as well as in the Yajurveda. The tradition has evolved from offering oblations and libations into sacred fire to symbolic offerings in the presence of said sacred fire. Yajna rituals-related texts have been called the Karma-kanda (ritual works) portion of the Vedic literature, in contrast to the Jnana-kanda (knowledge) portion found in the Vedic Upanishads. The proper completion of Yajna-like rituals was the focus of Mimansa school of Hindu philosophy. Yajna have continued to play a central role in Hindu rites of passage, such as weddings. Modern major Hindu temple ceremonies, Hindu community celebrations, or monastic initiations may also include Vedic Yajna rites, or alternatively be based on Agamic rituals.