See: D&C 88:28
“We came to this earth that we might have a body and present it pure before God in the celestial kingdom. The great principle of happiness consists in having a body. The devil has no body, and herein is his punishment. . .
“All beings who have bodies have power over those who have not. The devil has no power over us only as we permit him. The moment we revolt at anything which comes from God, the devil takes power” (Joseph Smith, Teachings of the Prophet Joseph Smith, p. 181).
The punishment of the adversary was that he did not receive a body. All beings who have bodies, as the Prophet said it, will have power over those who do not. The devil has no power over us, only as we permit him. — President Boyd K. Packer, “The Instrument of Your Mind and the Foundation of Your Character,” CES Fireside for Young Adults, Feb. 2, 2003, p. 2
“To keep the body in good health is a duty… otherwise we shall not be able to keep our mind strong and clear.” — Buddha
“Take care of your body. It’s the only place you have to live.” – Jim Rohn
“Physical fitness is not only one of the most important keys to a healthy body, it is the basis of dynamic and creative intellectual activity.” – John F. Kennedy
“The best way to detoxify is to stop putting toxic things into the body and depend upon it’s own mechanisms.” – Andrew Weil
Regardless of the Word of Wisdom, there is a divinely given reason for avoiding these illegal substances.
I am convinced that their use is an affront to God. He is our Creator. We are made in His image. These remarkable and wonderful bodies are His handiwork. Does anyone think that he can deliberately injure and impair his body without affronting its Creator? We are told again and again that the body is the tabernacle of the spirit. We are told that it is a temple, holy to the Lord. In a time of terrible conflict between the Nephites and the Lamanites, we are told that the Nephites, who had been strong, became “weak, like unto their brethren, the Lamanites, and that the Spirit of the Lord did no more preserve them; yea, it had withdrawn from them because the Spirit of the Lord doth not dwell in unholy temples” (Helaman 4:24). — President Gordon B. Hinckley, “The Scourge of Illicit Drugs,” Ensign, November 1989, p. 50
The Prophet Joseph Smith taught that in the Resurrection each person will receive back the very body he inhabited in mortality, that “there is no fundamental principle belonging to a human system that ever goes into another in this world or in the world to come; I care not what the theories of men are. We have the testimony that God will raise us up, and he has the power to do it. If anyone supposes that any part of our bodies, that is, the fundamental parts thereof, ever goes into another body, he is mistaken.” (History of the Church, 5:339; see also 1 Corinthians 15:35–54; Alma 11:43–44; 40:23–25.) The body will be resurrected to a glory equal to the level of law by which one lived. The person who keeps the commandments receives “truth and light, until he is glorified” (D&C 93:28). — D&C Student Manual, p. 199
When any of Heavenly Father’s children misuse their physical tabernacles by violating the law of chastity, by using drugs and addictive substances, by disfiguring or defacing themselves, or by worshipping the false idol of body image, whether their own or that of others, Satan is delighted. To those of us who know and understand the plan of salvation, any defiling of the body is rebellion and a denial of our true identity as sons and daughters of God (see Mosiah 2:36–37; D&C 64:34–35). — Elder David A. Bednar, “Things as They Really Are,” Ensign, June 2010, p. 18
Satan also strives to entice the sons and daughters of God to minimize the importance of their physical bodies. This particular type of attack is most subtle and diabolical. I want to provide several examples of how the adversary can pacify and lull us away into a sense of carnal security (see 2 Nephi 28:21) and encourage us to put at risk the earthly learning experiences that caused us to shout for joy in the premortal existence (see Job 38:7).
For example, all of us can find enjoyment in a wide range of wholesome, entertaining, and engaging activities. But we diminish the importance of our bodies and jeopardize our physical well-being by going to unusual and dangerous extremes searching for an ever-greater and more exhilarating adrenaline “rush.” We may rationalize that surely nothing is wrong with such seemingly innocent exploits and adventures. However, putting at risk the very instrument God has given us to receive the learning experiences of mortality – merely to pursue a thrill or some supposed fun, to bolster ego, or to gain acceptance – truly minimizes the importance of our physical bodies.
Sadly, some young men and young women in the Church today ignore “things as they really are” and neglect eternal relationships for digital distractions, diversions, and detours that have no lasting value. My heart aches when a young couple – sealed together in the house of the Lord for time and for all eternity by the power of the holy priesthood – experiences marital difficulties because of the addicting effect of excessive video gaming or online socializing. A young man or woman may waste countless hours, postpone or forfeit vocational or academic achievement, and ultimately sacrifice cherished human relationships because of mind- and spirit-numbing video and online games. As the Lord declared, “Wherefore, I give unto them a commandment . . . : Thou shalt not idle away thy time, neither shalt thou bury thy talent that it may not be known” (D&C 60:13). — Elder David A. Bednar, “Things as They Really Are,” Ensign, June 2010, p. 19
We have been taught . . . to look upon these bodies of ours as gifts from God. We Latter-day Saints do not regard the body as something to be condemned, something to be abhorred . . . We regard [the body] as the sign of our royal birthright . . . We recognize . . . that those who kept not their first estate . . . were denied that inestimable blessing . . . We believe that these bodies . . . may be made, in very truth, the temple of the Holy Ghost. . . .
It is peculiar to the theology of the Latter-day Saints that we regard the body as an essential part of the soul. Read your dictionaries, the lexicons, and encyclopedias, and you will find that nowhere, outside of the Church of Jesus Christ, is the solemn and eternal truth taught that the soul of man is the body and the spirit combined.” — Elder James E. Talmage, Conference Report, October 1913, p. 117