Add punctuation to the following sentence: Then my wife wrote a day or two after the dream in a letter to my mother that I have just run across among old family pictures it dawned on me that Christ was coming and I was so happy I was just crying for joy
"Then," my wife wrote a day or two after the dream, in a letter to my mother that I have just run across among old family pictures, "it dawned on me that Christ was coming, and I was so happy I was just crying for joy.