With every single breath, dust has begun rising from the heart; who knows which caravan's road-dust this actually is.

In this evocative couplet, the heart is imagined as a desolate desert path through which a caravan has recently passed. With every breath, the speaker exhales a cloud of dust, wondering what departed journey—perhaps of lost love, faded youth, or long-gone memories—left behind this lingering haze. It is a tender, melancholic reflection on grief that feels so deep it has physically become part of one's breathing.