The celibate student lives simply with the teacher, tending the sacred fire and guarding the mind
The text spells out a concrete daily routine, not an abstract ideal, in which fire-tending and obedience to one's teacher were treated as inseparable from the vow of chastity itself.
Manusmriti's second chapter describes the brahmachari's life in practical, almost domestic detail: the student resides in the guru's household, sleeps simply, begs for food when instructed, and tends the sacred fire (agnihotra) daily as part of ritual obligation. Chastity here is not a separate rule floating above the routine but woven into it — the text pairs sexual restraint with control of the senses generally, including diet, speech, and sleep. The guru-student household model meant continence was reinforced structurally: a young brahmachari had little private space and constant supervision, making the vow a matter of shared communal discipline rather than solitary willpower. This is one of the clearest ancient articulations of a principle repeated across traditions in this collection — that celibacy is sustained less by resolve than by a structured life built around it.
Manusmriti