The Interpreter explains to Christian about his pilgrimage:
"The man whose picture this is, is one of a thousand: he can beget children, (1 Cor. 4:15), travail in birth with children, (Gal. 4:19), and nurse them himself when they are born. And whereas thou seest him with his eyes lift up to heaven, the best of books in his hand, and the law of truth writ on his lips: it is to show thee, that his work is to know, and unfold dark things to sinners; even as also thou seest him stand as if he pleaded with men. And whereas thou seest the world as cast behind him, and that a crown hangs over his head; that is to show thee, that slighting and despising the things that are present, for the love that he hath to his Master's service, he is sure in the world that comes next, to have glory for his reward. Now, said the Interpreter, I have showed thee this picture first, because the man whose picture this is, is the only man whom the Lord of the place whither thou art going hath authorized to be thy guide in all difficult places thou mayest meet with in the way: wherefore take good heed to what I have showed thee, and bear well in thy mind what thou hast seen, lest in thy journey thou meet with some that pretend to lead thee right, but their way goes down to death."
- John Bunyan, Pilgrim's Progress (part I, stage II)