This shloka is remembered every time food is placed before a person. Krishna says: I dwell within every living body as Vaishvanara — the digestive fire. The food that is chewed, swallowed, licked, or sipped — all four types — I digest it.
This is why many families recite this shloka before meals. Eating is not just filling the stomach. It is an offering to the divine fire seated within. The warmth in the belly that breaks down food and turns it into energy — that fire, Krishna says, is his own presence.
A cooking fire in the home is easy to overlook. It burns steadily, the food cooks, the family eats. Nobody pays much attention to the flame itself. Vaishvanara is like that — the quiet inner fire that sustains every living body, working without pause.