Sitting in my house, and glorifying the Lord for all that I had seen, and reflecting on the commandments, that they are excellent, and powerful, and glorious, and able to save a man's soul, I said within myself, “I shall be blessed if I walk in these commandments, and every one who walks in them will be blessed.” While I was saying these words to myself, I suddenly see him sitting beside me, and hear him thus speak: “Why are you in doubt about the commandments which I gave you?
They are excellent: have no doubt about them at all, but put on faith in the Lord, and you will walk in them, for I will strengthen you in them. These commandments are beneficial to those who intend to repent: for if they do not walk in them, their repentance is in vain. You, therefore, who repent cast away the wickedness of this world which wears you out; and by putting on all the virtues of a holy life, you will be able to keep these commandments, and will no longer add to the number of your sins.
Walk, therefore, in these commandments of mine, and you will live unto God. All these things have been spoken to you by me.” And after he had uttered these words, he said to me, “Let us go into the fields, and I will show you the shepherds of the flocks.” “Let us go, sir,” I replied. And we came to a certain plain, and he showed me a young man, a shepherd, clothed in a suit of garments of a yellow colour: and he was herding very many sheep, and these sheep were feeding luxuriously, as it were, and riotously, and merrily skipping hither and there. The shepherd himself was merry, because of his flock; and the appearance of the shepherd was joyous, and he was running about among his flock. [And other sheep I saw rioting and luxuriating in one place, but not, however, leaping about.]
Source: The Pastor (or "The Shepherd") (New Advent)