Suddenly she was aware of angels encamped' on her bed and she felt the peace and protection of the Lord. Only the hands and face have such representation in the brain. They are the two body parts we use most to express our emotions, through our facial expressions and gestures. The human brain is more adapted to communication than others. Several primate species have been ably to learn sign language, and all of them use some kind of gestures in communicating with one another.
Communication is a social phenomena.
It mostly happens between people. Possibly faces and hands are the body parts our brain are best able to recognize, because these are routinely used for communication. If the experience involves one of the amygdala more than the other, the result might be an emotionally intense experience. If one amygdala or the other really dominates the experience, then a terrifying demon, or a deeply comforting angel might be the result. If the experience involved the sensorimotor cortex, it could include feelings of movement, which can be extrapolated into sensations of flying, rising or falling.