"Just the top of your head," answered he.

"There, then," I returned, "that is just what you are like—a man with the light on his head, but not on his face. And why not on your face? Because you hold your head down."

"Isn't it possible, sir, that a man might lose the light on his face, as you put it, by doing his duty?"

"That is a difficult question," I replied. "I must think before I answer it."

"I mean," added Joe—"mightn't his duty be a painful one?"

"Yes. But I think that would rather etherealise than destroy the light. Behind the sorrow would spring a yet greater light from the very duty itself. I have expressed myself badly, but you will see what I mean.—To be frank with you, Joe, I do not see that light in your face. Therefore I think something must be wrong with you. Remember a good man is not necessarily in the right. St. Peter was a good man, yet our Lord called him Satan—and meant it of course, for he never said what he did not mean."

"How can I be wrong when all my trouble comes from doing my duty—nothing else, as far as I know?"

"Then," I replied, a sudden light breaking in on my mind, "I doubt whether what you suppose to be your duty can be your duty. If it were, I do not think it would make you so miserable. At least—I may be wrong, but I venture to think so."

"What is a man to go by, then? If he thinks a thing is his duty, is he not to do it?"

"Most assuredly—until he knows better. But it is of the greatest consequence whether the supposed duty be the will of God or the invention of one's own fancy or mistaken judgment. A real duty is always something right in itself. The duty a man makes his for the time, by supposing it to be a duty, may be something quite wrong in itself. The duty of a Hindoo widow is to burn herself on the body of her husband. But that duty lasts no longer than till she sees that, not being the will of God, it is not her duty. A real duty, on the other hand, is a necessity of the human nature, without seeing and doing which a man can never attain to the truth and blessedness of his own being. It was the duty of the early hermits to encourage the growth of vermin upon their bodies, for they supposed that was pleasing to God; but they could not fare so well as if they had seen the truth that the will of God was cleanliness. And there may be far more serious things done by Christian people against the will of God, in the fancy of doing their duty, than such a trifle as swarming with worms. In a word, thinking a thing is your duty makes it your duty only till you know better. And the prime duty of every man is to seek and find, that he may do, the will of God."