Luke 9:28

"And it became about eight days after these words, that he took with him Peter and John and James, and up-stepped into the mountain to toward-good-have."  Luke intentionally connects this verse with the previous one by noting that it's just been eight days since Jesus' statement about perceiving the realm.  So the four of them proceed (ultra literally "up-step") to ascend the mountain for one purpose: to toward-good-have.  Typically translated as "prayer", the Greek PROSEUCHE is a three part word that is always rendered into English, by the Etymological New Testament, very literally.  Prayer is directional, "toward", it is toward goodness or, just as literally, it could be translated "well-being", and it is something we "have" or hold.  Etymologically, prayer is to have or hold ourselves or others toward well being/goodness.  Jesus and his close associates went up into the mountain to hold-toward-well being, themselves and others...and so should we.