“They Can Show Themselves Unto Whatsoever Man It Seemeth Them Good”

"They have the power to show themselves to whomsoever they desire. And the converse is true. They can keep themselves from being seen by anyone they do not want to see them. The only stipulation required for them to show themselves is that they must pray to the Father in the name of Jesus for that power.

"Mormon declares, 'they are as the angels of God' (3 Nephi 28:30). This would seem to mean that travel and distances are of no consequence to them. We would suppose that walls and other mortal barriers are also insignificant. Because of their extraordinary powers and the prophetic words of the Savior himself, which we do not yet possess, Mormon prophesied that 'great and marvelous works shall be wrought by them, before the great and coming day' of the Lord (v 31)." (Clyde J. Williams, Book of Mormon Symposium Series, 3 Nephi 9-30, edited by PR Cheesman, MS Nyman, and CD Tate, Jr., 1988, p. 246)