Matthew 17:1-2. “And after six days Jesus taketh unto him Peter and James, and John his brother, and bringeth them up into a high mountain apart: and he was transfigured before them. And his face did shine as the sun: and his garments became white as snow.”
“For a moment Jesus discloses his divine glory, confirming Peter’s confession. He also reveals that he will have to go by the way of the cross at Jerusalem in order to ‘enter into his glory’ (Lk 24:26)” (CCC, 555). Vatican
Our Father, 10 Hail Marys (contemplating the mystery), Glory Be and Fatima Prayer.