not always. how does a spirit have a shape and be in all places? try to make sense of that. just try to. that a foot bigger then a man is also in the smallest of place , say less then a distance of the of the nucleus to the electron, and yet big enough to bigger then a man whom is before him on the glass sea throwing his crown. or bigger then the mt.horeb in Sinai.
thus my point. its the way God choose to be seen. did you notice what is important here? MOSES shown with glory after that sight and also im sure had to wonder what He saw and like any pentacostal imho he tended to do things more like the lord.