While he was still speaking, behold, a bright cloud overshadowed them; and suddenly a voice came out of the cloud, saying, “This is My beloved Son, in whom I am well pleased. Hear Him!” And when the disciples heard it, they fell on their faces and were greatly afraid. But Jesus came and touched them and said, “Arise, and do not be afraid.” When they had lifted up their eyes, they saw no one but Jesus only.  Now as they came down from the mountain, Jesus commanded them, saying, “Tell the vision to no one until the Son of Man is risen from the dead.” (Mat 17:5-9 NKJ)Therefore we also, since we are surrounded by so great a cloud of witnesses, let us lay aside every weight, and the sin which so easily ensnares us, and let us run with endurance the race that is set before us, (Heb 12:1 NKJ)

Overwhelmed with what they saw, heard, and felt they fell prostrate on their faces.  Jesus touched them and spoke over them.  When they lifted their eyes, only Jesus was there. What happened to Elijah and Moses? What happened to the presence and glory of God? If we read Hebrews, we’re told that nothing had changed, they were still there, in fact, we are surrounded by a great cloud of witnesses, we just don’t have the ability to see them.  Even when we feel alone, we’re not, just believe.