The Temple Endowment, as administered in modern temples, comprises instruction relating to the significance and sequence of past dispensations, and the importance of the present as the greatest and grandest era in human history. This course of instruction includes a recital of the most prominent events of the creative period, the condition of our first parents in the Garden of Eden, their disobedience and consequent expulsion from that blissful above, their condition in the lone and dreary world when doomed to live by labor and sweat, the plan of redemption by which the great transgression may be atoned, the period of the great apostasy, the restoration of the Gospel with all its ancient powers and privileges, the absolute and indispensable condition of personal purity and devotion to the right in present life, and a strict compliance with Gospel requirements. . . .
The ordinances of the endowment embody certain obligations on the part of the individual, such as covenant and promise to observe the law of strict virtue and chastity, to be charitable, benevolent, tolerant and pure; to devote both talent and material means to the spread of truth and the uplifting of the race; to maintain devotion to the cause of truth; and to seek in every way to contribute to the great preparation that the earth may be made ready to receive her King – the Lord Jesus Christ. With the taking of each covenant and the assuming of each obligation a promised blessing is pronounced, contingent upon the faithful observance of the conditions.
No jot, iota, or tittle of the temple rites is otherwise than uplifting and sanctifying. In every detail the endowment ceremony contributes to covenants of morality of life, consecration of person to high ideals, devotion to truth, patriotism to nation, and allegiance to God. The blessings of the House of the Lord are restricted to no privileged class; every member of the church may have admission to the temple with the right to participate in the ordinances thereof, if he comes duly accredited as of worthy life and conduct. (James E. Talmage, The House of the Lord, pp. 83-84) — Ensign, February 1995, p. 40
President Brigham Young observed that the endowment will prove to be vital for us after we leave mortality:
“Let me give you a definition in brief. Your endowment is, to receive all those ordinances in the house of the Lord, which are necessary for you, after you have departed this life, to enable you to walk back to the presence of the Father, passing the angels who stand as sentinels, being enabled to give them the key words, the signs and tokens, pertaining to the holy Priesthood, and gain your eternal exaltation in spite of earth and hell.” (Discourses of Brigham Young, p. 416) — Ensign, February 1995, p. 40
The endowment which was given by revelation can best be understood by revelation; and to those who seek most vigorously, with pure hearts, will the revelation be the greatest. — John A. Widtsoe, “Utah Genealogical and Historical Magazine,” April 1921, p. 63
The temple endowment . . . is the step-by-step ascent into the eternal Presence. If we could but glimpse it, it would be the most powerful spiritual motivation of our lives. — President David O. McKay
The endowment in the temple is a necessary and sacred blessing as essential for the members of the Church as baptism. — Elder W. Grant Bangerter, Ensign, May 1982, p. 71
The ideals of faith, hope, and charity are most evident in the holy temples. There we learn the purpose of life, strengthen our commitment as disciples of Christ by entering into sacred covenants with Him, and seal our families together for eternity across generations. Receiving our own endowment in a temple and returning frequently to perform sacred ordinances for our kindred dead increases our faith, strengthens our hope, and deepens our charity. We receive our own endowment with faith and hope that we will understand the Lord’s plan for His children, will recognize the divine potential within each of us as children of our Heavenly Father, and will be faithful to the end in keeping the covenants we make. Performing temple ordinances for the dead is a manifestation of charity, offering essential blessings to those who have preceded us, blessings that were not available to them during their mortal lives. We have the privilege of doing for them what they are unable to do for themselves. — Elder Joseph B. Wirthlin, Ensign, November 1998, p. 27