pure intelligence can flow

Boyd K. Packer: Should an angel appear and converse with you, neither you nor he would be confined to corporeal sight or sound in order to communicate. For there is that spiritual process, described by the Prophet Joseph Smith, by which pure intelligence can flow into our minds and we can know what we need to know without either the drudgery of study or the passage of time, for it is revelation.

And the Prophet said further:

“All things whatsoever God in his infinite wisdom has seen fit and proper to reveal to us, while we are dwelling in mortality, in regard to our mortal bodies, are revealed to us in the abstract … revealed to our spirits precisely as though we had no bodies at all; and those revelations which will save our spirits will save our bodies.” (Teachings, p. 355.)

(Ensign, Jan. 1983, "Candle of the Lord")