What a glorious thought it is … that those from whom we have to part here, we will meet again and see as they are. We will meet the same identical being that we associated with here in the flesh—not some other soul, some other being, or the same being in some other form, but the same identity and the same form and likeness, the same person we knew and were associated with in our mortal existence, even to the wounds in the flesh. Not that a person will always be marred by scars, wounds, deformities, defects or infirmities, for these will be removed in their course, in their proper time, according to the merciful providence of God.
Deformity will be removed; defects will be eliminated, and men and women shall attain to the perfection of their spirits, to the perfection that God designed in the beginning. It is his purpose that men and women, his children, born to become heirs of God, and joint heirs with Jesus Christ, shall be made perfect, physically as well as spiritually, through obedience to the law by which he has provided the means that perfection shall come to all his children… .
… What else would satisfy us? What else would satisfy the desire of the immortal soul? Would we be satisfied to be imperfect? Would we be satisfied to be decrepit? Would we be satisfied to remain forever and ever in the form of infirmity incident to age? No! … From the day of the resurrection, the body will develop until it reaches the full measure of the stature of its spirit, whether it be male or female.
(Joseph F. Smith, Gospel Doctrine, pp. 23–24)