The Salt Lake Temple As A Symbol
The primary symbol of the Salt Lake Temple is the building itself. At its inception, LDS Church President Brigham Young said that he wanted to see the temple built in a manner that it will endure through the Millennium and stand as a proud monument of the faith, perseverance and industry of the Saints who built it.
To fulfill this, the temple walls were made with solid granite stone that was cut from the local mountains. The granite blocks were hand-carved by dedicated workers, many of them volunteers, who labored for 40 years to complete the edifice. The granite symbolizes the enduring power of God's Holy Priesthood and the sacred ordinances and blessings of that priesthood that are administered within the temple walls.
Everything about the temple pertains to God, His Kingdom and His Holy Priesthood. The Salt Lake Temple, itself, is a symbol that testifies of the Latter-day Saint belief in the literal reality of The Living God, the belief in His Son, Jesus Christ, and in a post-Earth life in God's Kingdom. In Luke Chapter 9, Jesus speaks of not having a home. For Mormons, the temple is considered a House of, and for, God The Father and Jesus Christ. So as people enter the Salt Lake Temple, as well as other temples, they symbolically leave this world behind and enter into Heaven, and God The Father and Jesus' presence.
At night the temple is illuminated. This represents God's light to us, and is a beacon to all to come to the Savior and receive the blessings of His home. The temple is, above all else, a symbol of faith and hope in God.