The Laws of God

In the article, "Secretive Mormonism" in Meridian Magazine, author, John A. Tvedtnes, senior resident scholar with Neal A. Maxwell Institute for Religious Scholarship commented about the esoteric versus exoteric nature of the LDS temple practices:

"...some elements of the temple are so sacred that we do not discuss them publicly, but most of what goes on in the temples is well-known. One need not look far to learn that the most important such rite is the solemnization of marriage for time and all eternity and that vicarious ordinances (sacraments in Roman Catholic parlance) are performed for deceased ancestors, beginning with proxy baptism.

"Even the endowment ceremony, the one most commonly held in Latter-day Saint temples, is mostly public knowledge. Most of the teachings presented during that time derive from the Book of Moses, published in the Pearl of Great Price. During an endowment session, we are reminded of our responsibility to obey the basic laws given mankind by God, such as the law of chastity (including fidelity after marriage), the law of obedience to God’s commandments, the law of sacrifice (which culminated in the sacrifice of Jesus Christ on the cross), the law of the gospel (salvation through Christ), and the law of consecration of one’s time, talents, and other divine blessings, to building up the Lord’s work on the earth.

"Elements that are not discussed openly include ritual elements of temple prayer and the actual endowment or giving of signs, names, and tokens designed to enable one to pass the angels and ultimately to enter the presence of God. These may seem strange to most modern Christians, but they were common in early Christianity."

Also See:
The Five Celestial Laws by Jeffrey M. Bradshaw