The devotion of themselves to each other in the Spirit by the Father and the Son has content. Not only does the procession of the Spirit from the Father to the Son express their mutual love, as they breathe after each other, but also it gives each to the other. In the procession of the Spirit from the Father, the Father gives himself to the Son; in the procession of the Spirit from the Son to the Father, and in this use of the word "procession" from the Son is meant the sending of the Holy Spirit as the Son teaches that the Holy Spirit proceeds from the Father, the Son gives himself to the Father in prayer, for the procession of the Spirit, like the begetting of the Son, is the going forth of the being of the Father to the Son and the going forth of the being of the Son to the Father as the Holy Spirit.