By Swami Harshananda
Sometimes transliterated as: Agnistoma, AgniSToma, Agnishtoma
The system of sacrifices (yajñas and yāgas) forms the link between men and god. Men propitiate gods through them and gods respond by bestowing upon men by fulfilling their desires. This is the doctrine propounded in the scriptures like the Bhagavadgitā.
Somayāga is a general name for those sacrifices in which libations of the soma juice are offered in the duly consecrated fire. Agniṣṭoma is a typical Somayāga, forming the prakṛti or model for other Soma sacrifices. It is such an integral part of another well-known sacrifice, Jyoti- ṣṭoma, that these two are often identified same. Literally the word ‘Agniṣṭoma’ means ‘praise of Agni’ and the rite derives its name from the hymns called stoma (a group of three ṛks) which are chanted in the praise of Agni towards the end of the rite.
- On the first day, somapravākas or heralds of Soma sacrifice are sent out to invite priests. Rites to be performed are choosing the priests, dīkṣā (initiatory rites) of the person performing sacrifice including another small sacrifice called Dīkṣaṇīyā- isti and construction of bamboo sheds.
- On the second day apart from purchasing the soma creepers and ‘welcoming’ them ceremonially, two more rites called pravargya and upasad are performed.
- On the third day, pravargya and upasad rites are repeated followed by the construction of mahāvedi and uttaravedi (altars for performing the sacrifices).
- On the fourth day, after once again performing pravargya and upasad rites, fire is ceremonially transferred from the old and permanent sacrificial shed to the new. This is known as agnīṣoma- praṇayana. An animal sacrifice (paśu-bandha) is also performed.
- On the fifth and the last day called ‘sutyā,’ the soma juice is extracted ceremonially three times and offered.
- The first offering called prātassavana is done in the morning.
- The second offering called mādhyandina-savana is done at noon. At the end of this, sacrificial fees are distributed.
- Soon after this, begins the third pressing called tṛtīyā.
- Bhagavadgitā 3.10-12
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore