In a symbolic way, the teachings and rituals of the temple take us on an upward journey toward eternal life, ending with a symbolic entrance into the presence of God. The characters depicted, the physical setting, the clothing worn, the signs given, and all the events covered in the temple are symbolic. When they are understood, they will help each person recognize truth and grow spiritually.

http://www.lds.org/manual/endowed-from-on-high-temple-preparation-seminar-teachers-manual/lesson-5-learning-from-the-lord-through-symbols?lang=eng