In the beginning of the Book of Mormon, the prophet Lehi and later his son, Nephi, see a vision of a "Tree of Life". Leading to this tree is an "iron rod". This rod provides guidance along the only path to the Tree of Life. There are many distractions along the way but only by holding fast to the rod of iron can anybody hope to taste of the fruit of the Tree of Life.
In explaining the symbolism of this vision, Nephi says that the "iron rod is the word of God". "The word of God" as recorded by His prophets is called scripture. In the light of the restored Gospel we have four books of scripture which we call the Standard Works. These include The Holy Bible, The Book Of Mormon, the Doctrine and Covenants, and the Pearl of Great Price. In addition to these books of scripture, Christ's living Prophets and Apostles provide us with "the word of God" for daily guidance and direction for our time.
If we can ever hope to reach the Tree of Life we must hold fast to the iron rod. We must treasure the word of God. We must read and learn from the scriptures. We must follow the counsel of modern-day prophets. We must resist ALL distractions that can and will come along our ways. To dwell with Heavenly Father for eternity and truly enjoy the fruit of the Tree of Life we must stay on the strait and narrow path leading to Him. Luckily, we have an iron rod to help us along the way.
And when temptation's power is nigh
Our pathway clouded o'er
Upon the rod we can rely
And Heaven's aid implore
None can escape the mist of darkness. But as we proceed, holding fast to the iron rod, we can make it. I add my testimony that Jesus Christ lives. He has spoken to His prophets in ancient times and He does so now. Following the counsel of these prophets is how we return to live with our Heavenly Father and our Lord and Savior Jesus Christ.