This is a mysterious and curious story (Matthew 17:1-9). A story which is sometimes hard for us to imagine. The story of the Transfiguration is one of the mobile festivals of the church, that is, there are several dates on which it can be celebrated (now on the Sunday before Lent, on the Second Sunday of Lent or on August the 6th).
It is a story that shows us in words and pictures that Jesus is both fully human and fully divine - both ordinary and extraordinary at the same time. And it is important to be reminded of this as we prepare to travel with Jesus through his last days that Jesus was frail human flesh as well as the divine one enfleshed; that he experienced life and death as we do and in a way that opened the doors to eternity for all of us.
We are also probably familiar with the symbolism of Moses