Brahmayajña — The Daily Sacrifice of Vedic Recitation
Brahmayajña (brahma = the Veda, sacred knowledge; yajña = sacrifice, offering; 'the sacrifice to/of the Veda/Brahman') is one of the pañca-mahāyajñas (five great daily sacrifices) that every dvija (twice-born — one who has received the upanayana (sacred thread) initiation) householder is obligated to perform as part of the nityakarma (daily obligatory practice). The five great daily sacrifices are: (1) Brahma-yajña (Vedic recitation — svādhyāya); (2) Deva-yajña (offering to the gods through fire — agnihotra, homam); (3) Pitṛ-yajña (tarppaṇam — water offerings and mantras for the ancestors); (4) Bhūta-yajña (offering to other beings — bali, food placed for birds, insects, animals, and beings of other realms); (5) Manuṣya-yajña (hospitality to guests — atithi-sevā). Through these five, the householder fulfills his debts to the Veda/Brahman, to the gods, to his ancestors, to all creatures, and to humanity.
Brahma-yajña specifically consists of svādhyāya — the practice of reciting one's own Vedic branch (śākhā) daily. The dvija is born into a specific gotra (lineage) and śākhā (Vedic branch — e.g., Ṛgveda Āśvalāyana, Sāmaveda Kauthuma, Kṛṣṇa Yajurveda Taittirīya, Atharvaveda Śaunaka); his brahma-yajña is the recitation of his particular branch's Saṃhitā (the mantra collection). Through this daily recitation, the Vedas are not merely preserved as texts but kept alive as vibrating sound-reality (śabda-brahman) — the Veda exists in oral living transmission, and every recitation is a fresh act of cosmic maintenance. The Āchāryas of the Viśiṣṭādvaita tradition taught that svādhyāya is the form of worship (upāsanā) most accessible to a person of the brahmaṇa order — before the higher forms of bhakti or prapatti can take root, the foundation of Vedic recitation keeps the mind attuned to sacred sound.
In Śrī Vaiṣṇava Āchārya literature, the pañca-mahāyajñas are sometimes understood at a deeper level: the Brahma-yajña is not only Vedic recitation but, in the tradition of Ubhaya Vedānta, the recitation of the Divya Prabandham alongside the Vedic Saṃhitā — the Tamil Vedas being considered equal in authority and sanctity to the Sanskrit Vedas. The Āzhvārs and Āchāryas taught that just as the brahmin's identity is marked by his Vedic recitation, the Śrī Vaiṣṇava's daily identity is marked by his prabandham recitation — particularly the Tiruppāvai, Tiruvāymozhi, and the other four thousand Nālāyira Divya Prabandham pāsurams that form the Tamil Veda.