The question is, if it is right that one should think of one's body and the condition of one's health. It is, so long as one is not obsessed by oneself. If one thinks about one's health so much that one becomes obsessed by it, it is working against oneself. It is certainly wrong, because it is not helping oneself. If one pities oneself and says, "Oh, how ill I am, and how terrible it is! And shall I ever be well?" then the impression becomes a kind of fuel to the fire, one is feeding one's illness by the thought of it. But if on the other hand one becomes so neglectful of oneself that one says, "Oh, it does not matter; it is after all an illusion," one will not be able to keep that thought when the pain increases. It is as necessary to take care of oneself as it is to forget about one's illness. For an illness comes to a person as a thief enters the house, quietly. He works without the knowledge of the dwellers in it and robs them of their best treasures. If one keeps guard against it, it is not wrong as long as one does not dwell all the time on one's illness.