I am preaching on the Transfiguration (Mark 9:1-13) this coming Lord's Day. There is much to say about this incredible passage, but one sure outcome is a change in our life as we "behold the glory of Christ".
I like what John Owen says in his book about beholding the glory of Christ-
"In this then, I say, we may by faith behold the glory of Christ, as we shall do it by sight hereafter. If we see no glory in it, if we discern not that which is matter of eternal admiration, we walk in darkness. It is the most ineffable effect of divine wisdom and grace. Where are our hearts and minds, if we can see no glory in it? I know in the contemplation of it, it will quickly overwhelm our reason and bring our understanding into a loss; but to this loss I desire to be brought every day; for when faith can no more act itself in comprehension, when it finds the object it is fixed on too great and glorious to be brought into our minds and capacities, it will issue in holy admiration, humble adoration, and joyful thanksgiving. In and by its actings in them it fills the soul with 'joy unspeakable, and full of glory'."