D&C 137

In receiving a revelation, the Prophet said -

"THE heavens were opened upon us, and I beheld the celestial kingdom of God, and the glory thereof, whether in the body or out I cannot tell."  (Doctrine and Covenants | Section 137:1)

Obviously, revelation comes to the spirit.  Of such the Prophet commented -

“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, and independent of affinity of this mortal tabernacle, but are 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. God reveals them to us in view of no eternal dissolution of the body, or tabernacle” (Teachings of the Prophet Joseph Smith, page 355).