essential foundation stone
"The year was 1820; the season, spring. The boy with questions walked into the grove of his father's farm. There, finding himself alone, he pleaded in prayer for that wisdom which James promised would be given liberally to those who ask of God in faith (see James 1:5). There, in circumstances which he has described in much detail, he beheld the Father and the Son, the great God of the universe and the risen Lord, both of whom spoke to him.
"This transcendent experience opened the marvelous work of restoration. It lifted the curtain on the long-promised dispensation of the fullness of times.
"For more than a century and a half, enemies, critics, and some would-be scholars have worn out their lives trying to disprove the validity of that vision. Of course they cannot understand it. The things of God are understood by the Spirit of God. There had been nothing of comparable magnitude since the Son of God walked the earth in mortality. Without it as a foundation stone for our faith and organization, we have nothing. With it, we have everything.
"Much has been written, much will be written, in an effort to explain it away. The finite mind cannot comprehend it. But the testimony of the Holy Spirit, experienced by countless numbers of people all through the years since it happened, bears witness that it is true, that it happened as Joseph Smith said it happened, that it was as real as the sunrise over Palmyra, that it is an essential foundation stone, a cornerstone, without which the Church could not be 'fitly framed together.' "