Dharmashastra (religious law)Aptoryāma (अप्तोर्याम) refers to one of the seven Somasaṃsthās or Somayajñas (groups of seven sacrifices).—Hārīta says: “Let a man offer the Pākayajñas always, always also the Haviryajñas, and the Somayajñas (Soma sacrifices), according to rule, if he wishes for eternal merit”.—The object of these sacrifices [viz., Aptoryāma] is eternal happiness, and hence they have to be performed during life at certain seasons, without any special occasion (nimitta), and without any special object (kāma). According to most authorities, however, they have to be performed during thirty years only. After that the Agnihotra only has to be kept up.
Aptoryāma (अप्तोर्याम) refers to the “sacrifice performed for attaining all the desired results” and represents one of the various rituals mentioned in the Vaikhānasagṛhyasūtra (viz., vaikhānasa-gṛhya-sūtra) which belongs to the Taittirīya school of the Black Yajurveda (kṛṣṇayajurveda).—The original Gṛhyasūtra of Vaikhanāsa consists of eleven chapters or “praśnas”. Each praśna is subdivided into sub-divisions called “khaṇḍa”. But only the first seven chapters deal with actual Gṛhyasūtra section. Aptoryāma is one of the seven somayajñas.