The Atonement of the Only Begotten Son of God is the crucial foundation upon which all Christian doctrine rests and the greatest expression of divine love this world has ever been given.
As a young missionary, Elder Orson F. Whitney (1855–1931), who later served in the Quorum of the Twelve Apostles, had a dream so powerful that it changed his life forever. He later wrote:

“One night I dreamed … that I was in the Garden of Gethsemane, a witness of the Savior’s agony. … I stood behind a tree in the foreground. … Jesus, with Peter, James, and John, came through a little wicket gate at my right. Leaving the three Apostles there, after telling them to kneel and pray, He passed over to the other side, where He also knelt and prayed … : ‘Oh my Father, if it be possible, let this cup pass from me; nevertheless not as I will but as Thou wilt.’

“As He prayed the tears streamed down His face, which was [turned] toward me. I was so moved at the sight that I wept also, out of pure sympathy with His great sorrow. My whole heart went out to Him. I loved Him with all my soul and longed to be with Him as I longed for nothing else.

“Presently He arose and walked to where those Apostles were kneeling—fast asleep! He shook them gently, awoke them, and in a tone of tender reproach, untinctured by the least show of anger or scolding, asked them if they could not watch with Him one hour. …

“Returning to His place, He prayed again and then went back and found them again sleeping. Again He awoke them, admonished them, and returned and prayed as before. Three times this happened, until I was perfectly familiar with His appearance—face, form, and movements. He was of noble stature and of majestic mien … the very God that He was and is, yet as meek and lowly as a little child.

“All at once the circumstance seemed to change. … Instead of before, it was after the Crucifixion, and the Savior, with those three Apostles, now stood together in a group at my left. They were about to depart and ascend into heaven. I could endure it no longer. I ran from behind the tree, fell at His feet, clasped Him around the knees, and begged Him to take me with Him.

“I shall never forget the kind and gentle manner in which He stooped and raised me up and embraced me. It was so vivid, so real that I felt the very warmth of His bosom against which I rested. Then He said: ‘No, my son; these have finished their work, and they may go with me; but you must stay and finish yours.’ Still I clung to Him. Gazing up into His face—for He was taller than I—I besought Him most earnestly: ‘Well, promise me that I will come to You at the last.’ He smiled sweetly and tenderly and replied: ‘That will depend entirely upon yourself.’ I awoke with a sob in my throat, and it was morning.”1

Why an Atonement?
This tender, personal glimpse of the Savior’s loving sacrifice is a fitting introduction to the significance of the Atonement of Jesus Christ. Indeed the Atonement of the Only Begotten Son of God in the flesh is the crucial foundation upon which all Christian doctrine rests and the greatest expression of divine love this world has ever been given. Its importance in The Church of Jesus Christ of Latter-day Saints cannot be overstated. Every other principle, commandment, and virtue of the restored gospel draws its significance from this pivotal event.2

The Atonement was indispensable because the Fall of Adam brought two kinds of death into the world.

The Atonement was the foreordained but voluntary act of the Only Begotten Son of God in which He offered His life and spiritual anguish as a redeeming ransom for the effect of the Fall of Adam upon all mankind and for the personal sins of all who repent.

The literal meaning of the English word Atonement is self-evident: at-one-ment, the bringing together of things that have been separated or estranged. The Atonement of Jesus Christ was indispensable because of the separating transgression, or Fall, of Adam, which brought two kinds of death into the world when Adam and Eve partook of the fruit of the tree of knowledge of good and evil.3 Physical death brought the separation of the spirit from the body, and spiritual death brought the estrangement of both the spirit and the body from God. As a result of the Fall, all persons born into mortality would suffer these two kinds of death. But we must remember the Fall was an essential part of Heavenly Father’s divine plan. Without it no mortal children would have been born to Adam and Eve, and there would have been no human family to experience opposition and growth, moral agency, and the joy of resurrection, redemption, and eternal life.4

The need for this Fall and for an atonement to compensate for it was explained in a premortal Council in Heaven at which the spirits of the entire human family attended and over which God the Father presided. It was in this premortal setting that Christ volunteered to honor the moral agency of all humankind even as He atoned for their sins. In the process, He would return to the Father all glory for such redemptive love.5

This infinite Atonement of Christ was possible because (1) He was the only sinless man ever to live on this earth and therefore was not subject to the spiritual death resulting from sin, (2) He was the Only Begotten of the Father and therefore possessed the attributes of godhood that gave Him power over physical death,6 and (3) He was apparently the only one sufficiently humble and willing in the premortal council to be foreordained to that service.7

The Gifts of Christ’s Atonement
Some gifts coming from the Atonement are universal, infinite, and unconditional. These include His ransom for Adam’s original transgression so that no member of the human family is held responsible for that sin.8 Another universal gift is the Resurrection from the dead of every man, woman, and child who lives, has ever lived, or ever will live on earth.

The Resurrection of the body is a free and universal gift, a result of the Savior’s victory over death. It is one of the unconditional blessings available through the grace of Christ.