Adhyaya 3 - Agnyadheya (Establishment of the Sacred Fires)
This Adhyaya describes the Agnyadheya ceremony — the establishment of the three sacred fires (Garhapatya, Ahavaniya, and Dakshina). The mantras cover the selection of the fire-sticks, the churning of fire, and the consecration of each fire with specific offerings. This foundational ritual marks the beginning of a householder's Vedic obligations.