 The Pope goes on to say the glory of the Godhead shines forth from the face of Christ as the Father commands the astonished apostles to listen to him and to prepare to experience with him the agony of the passion so as to come with him to the joy of the resurrection and a life transfigured by the Holy Spirit. A final mystery of light is the institution of the Eucharist in which Christ offers his body and blood as food under the signs of bread and wine and testifies to the end