Nakiketas said: "In the heaven-world there is no fear; thou art not there, O Death, and no one is afraid on account of old age. Leaving behind both hunger and thirst, and out of the reach of sorrow, all rejoice in the world of heaven.
In plain words: Nachiketas describes heaven. There is no fear there, no death and no worry about growing old. People there are free of hunger, thirst and sorrow, and they are happy.