From Lehi's vision we learn that we must take hold of this safety railing-this iron rod, found alongside our individual straight and narrow path-and hold tight until we reach our ultimate goal of eternal life with our Heavenly Father. Nephi promises that those who hold fast to the iron rod"would never perish; neither could the temptations and the fiery darts of the adversary overpower them unto blindness, to lead them away to destruction"