A special procedure of worship in which various materials are offered as oblations, in the holy pyre, to obtain the desired results. There are a number of yagnas, mentioned in the scriptures, for acquiring various blisses viz. Putreshthi Yagna (for obtaining an obedient and worthy son), Ashwamegh Yagna (for achieving total victory), Mahalakshmi Yagna (for obtaining wealth and prosperity) etc.