 When Christ sees his church clothed in white, for her sake he himself had put on filthy clothing, as you may read in the prophecy of Zechariah. When he sees the soul washed clean by the waters of rebirth, he cries out, How beautiful you are, my beloved! How beautiful you are! Your eyes are like the eyes of a dove. For it was in the likeness of a dove that the Holy Spirit came down from heaven.