The transfiguration is a mystery pure and simple. I would have been just as dumbfounded as the disciples who were there to witness it.
I am not sure where I picked up this particular note (perhaps our parish Bible study?), however, it is fascinating to see that St. Thomas Aquinas said the transfiguration was actually the cessation or suspension of a miracle. This is because Christ pulled aside the veil of flesh to allow His natural glory to be seen.
Mind-blowing, am I right?
Let's just wrap our minds around that for a bit and then I'll have some other people's take on the transfiguration for further mind-bending.