Some people are so easy to engage in conversation; you leave saying to yourself: “You know, that was a real good time of conversing. I wish every conversation left me feeling as comfortable or informed as that one.” And others… “Surely wasted time on that one!”

How I wish I had been in a position to hear what Peter, James and John heard when present with the Lord on the Mountain! Some of the words are recorded for us, but not all. (Luke 9:28-31)
This was eight days after He, Jesus, had spoken about the value of life: “What is a man profited if he gains the whole world, and loses or forfeits himself?” What a penetrating question, which should be considered by all of us systematically as we go through life.
Jesus had gone to the mountain to pray. In the process of praying “His face became different, and His clothing became white and gleaming.” I am not certain your prayer life will accomplish an identical experience, but I am confident that a consistent attitude of prayer involving the relationship between you and the Lord Jesus Christ will change your life. I do not know of anyone who so engaged did not experience change, most people radically and for the better.
Not only did this experience change the appearance of the Lord Jesus to these three, but they also had the privilege of two men appearing and conversing with Our Savior; they were Moses and Elijah. Take time to read the context and you will discover that they were “speaking of His departure which He was about to accomplish at Jerusalem.”
When reading other portions of Scripture that relate to this experience, we have to conclude with the author who said: “They were conversing on important things—the shadow of Calvary!” When we get caught up in conversation with another individual, how much do we focus on the Lord Jesus Christ? Do we make time to inject something about Calvary? Do we see to it that our Savior is exalted in those few minutes or hours? Hopefully that is the case. It was so important that our Lord, Moses and Elijah took part in the conversation and Peter, James and John were allowed to be present.
How detailed was that conversation that ensued? Perhaps it would be considered hard to describe, but we know that they were “overshadowed by a cloud”, “they were instructed to be silent” until all had taken place, and God spoke directly to them: “This is My Son, My Chosen One; listen to Him!”
Lest I leave you without another important fact from that portion of Scripture, “And they kept silent, and reported to no one in those days any of the things they had seen.” Ah! But once He was crucified, buried, and risen; they could not contain themselves. How important is it to share about Him and His Resurrection?