The son said Death is what assails the world. Decrepitude brings it about. Those irresistible objects which come and go away are the nights.
पुत्र उवाच मृत्युनाभ्याहतो लोको जरया परिवारितः। अहोरात्राः पतन्त्येते ननु कस्मान्न बुध्यसे॥