Why do we light a lamp at dusk?
to welcome light, auspiciousness and the remembrance of God as day turns to night.
Sandhyā, the meeting of day and night, has always been treated as a sacred pause. Lighting a lamp at that moment is the household’s way of saying: darkness may come outside, but inside we choose light, knowledge and the presence of God. The flame is also a simple offering in itself, one of the five basic upacāras of pūjā.
In many homes the lamp is lit near the tulasī or in the mandir, and children recite “Śubhaṁ karoti kalyāṇam…”, a short prayer to the lamp that brings health, wealth and clear thinking. A ghee lamp is considered best, but a sesame-oil lamp is equally traditional, especially in the South.
Practically: light it a little before or at sunset, keep it in a safe place away from curtains, and let it burn out on its own or extinguish it gently with a flower or by covering it, rather than blowing it out.
Prayer: “Śubhaṁ karoti kalyāṇam” · Source: common family practice
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