(1) Baptism in the Jordan
"The Baptism in the Jordan is first of all a mystery of light. Here, as Christ descends into the waters, the innocent one who became “sin” for our sake (2Cor 5:21), the heavens open wide and the voice of the Father declares him the beloved Son (Mt 3:17), while the Spirit descends on him to invest him with the mission which he is to carry out."
(3) Proclamation of the Kingdom of God
The third "mystery of light is the preaching by which Jesus proclaims the coming of the Kingdom of God, calls to conversion (Mk 1:15) and forgives the sins of all who draw near to him in humble trust (Mk 2:3-13; Lk 7:47- 48): the inauguration of that ministry of mercy which he continues to exercise until the end of the world, particularly through the Sacrament of Reconciliation which he has entrusted to his Church (Jn 20:22-23)."
(2) Self-Manifestation at Cana
The second "mystery of light is the first of the signs, given at Cana (Jn 2:1- 12), when Christ changes water into wine and opens the hearts of the disciples to faith, thanks to the intervention of Mary, the first among believers."
(4) The Transfiguration
"The mystery of light par excellence is the Transfiguration, traditionally believed to have taken place on Mount Tabor. The glory of the Godhead shines forth from the face of Christ as the Father commands the astonished Apostles to “listen to him” (Lk 9:35) 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."
(5) The Institution of the Eucharist
The "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” his love for humanity (Jn 13:1), for whose salvation he will offer himself in sacrifice."