The transfiguration of Jesus on Mount Tabor is an experience that helps his disciples as an ILLUMINATION about the true identity of the Master; and of encouragement so that they can travel the path that Jesus points out to them, as well as an exhortation to carry out that journey under the imperative of listening.
To meet Jesus is to finally discover someone who is telling the truth. Someone who knows why to live and why to die.
In the passage of the transfiguration we see Jesus leading his disciples to a "high mountain", the place of excellence of encounter with God. There they will live a religious experience that will immerse them in the mystery of Jesus. Pedro's reaction is explainable: «How good it is to be here! Let's make three tents… ». Pedro wants to stop time, settle comfortably in the experience of religion, flee from Earth. Jesus, however, will bring them down from the mountain to the daily work of life and the disciples will have to understand that openness to the transcendent God can never be an escape from the world.
Whoever encounters God incarnate in Jesus feels more strongly the injustice, helplessness and self-destruction of men. That is why it is so important to listen to Jesus to feel that we are finally listening to someone who tells us the truth, someone who knows why and what we have to live for.
Fidelity to God should not keep us away from the struggle for a more just, supportive and fraternal Earth.