I read the question asked about the inscription on our temples “House of the Lord, Holiness to the Lord” and it seems like I have heard this several times. President Lorenzo Snow told one of his granddaughters, about a place in the Salt Lake Temple where Jesus Christ appeared to him. Have you heard of this?
The story you are referring to of President Snow’s vision was related by Susan Arrington Madsen and appeared in the Friend, Aug 1993 on page 14. It was adapted from “The Lord Needed a Prophet” page 83-83 by Susan Arrington Madsen.
This is the testimony, last of all, which we give of him: That he lives! (D&C 76:22).
Lorenzo Snow was still at work in his office in the Salt Lake Temple. It was dark outside, and the stars had come out. He was the fifth President of the Church, but he was also serving as the first president of the Salt Lake Temple at the time. He often stayed late into the evening to finish his work.
President Snow’s granddaughter Allie Young loved to visit him at his office. In those days, family members of the temple president were allowed to visit him there. They were not allowed to go through the entire temple, however, until they were old enough and had been found worthy and ready to make the sacred temple covenants.
This special evening Allie was with her grandfather in his office. The doorkeepers had gone home and the night watchmen had not yet come in, so they were alone. When Allie was ready to leave, President Snow went to a dresser and took a large bunch of keys from the drawer so that he could let her out the main entrance. Together they walked down a large corridor near the celestial room.
President Snow suddenly stopped and said, “Wait a moment, Allie. I want to tell you something.” Allie listened intently as her grandfather told her of an unforgettable experience he had once had at that place in the temple: “It was right here that the Lord Jesus Christ appeared to me at the time of the death of President Woodruff. He instructed me to go right ahead and reorganize the First Presidency of the Church at once and not wait as had been done after the death of the previous presidents, and that I was to succeed President Woodruff [as President of the Church].”
President Snow held out his left hand and said, “He stood right here, about three feet above the floor. It looked as though he stood on a plate of solid gold.”
Still speaking in hushed, reverent tones, President Snow told Allie that the Savior’s appearance was so glorious and bright that he could hardly look at Him.
President Snow put his right hand on Allie’s head and said, “Now granddaughter, I want you to remember that this is the testimony of your grandfather, that he told you with his own lips that he actually saw the Savior, here in the temple, and talked with him face to face.”
Allie listened to every word of this sacred experience and never forgot that precious moment but shared it many times later in her life with her family and friends.
I assume the author is related to Allie in some way.