They had been invisible before birth. Having come from that unknown region, they have again become invisible. They are not yours, nor are you theirs. Why should you grieve then for such disappearance?
अदर्शनादापतिताः पुनश्चादर्शनं गताः। नैते तव न तेषां त्वं तत्र का परिदेवना॥