There are times, brethren, when you need to restrain those feelings. There are times when you need to allow their full expression

 Now I would speak of something that is most sacred. When we were created, Father in Heaven put in our body the capacity to stir powerful emotions. Within the covenant of marriage, when properly used in ways acceptable to both and to the Lord, those emotions open the doors for children to come to earth. Such sacred expressions of love are an essential part of the covenant of marriage. Within marriage, however, the stimulation of those emotions can either be used as an end unto itself or to allow a couple to draw closer in oneness through the beautiful, appropriate expression of these feelings between husband and wife. There are times, brethren, when you need to restrain those feelings. There are times when you need to allow their full expression. Let the Lord guide you in ways that will enrich your marriage.

There are men, and unfortunately some women, who experiment with stimulating those emotions by influences outside of the covenant of marriage. There is a great difference between love and lust. Pure love yields happiness and engenders trust. It is the foundation of eternal joy. Lust will destroy that which is enriching and beautiful. A husband must have no private, hidden agenda that is kept secret from his wife. Sharing everything about each other’s personal life is powerful spiritual insurance. When you travel, take along a picture of your wife. Set it before you. Remember how you are loved and trusted. You will not be tempted to contaminate your mind or violate your covenants.

The Sanctity of Womanhood, Richard G. Scott, General Conference April 2004

Express them Fully

We will be careful about which counsel we heed. Many so-called experts give advice for the body—without thought for the spirit.

We will be careful about which counsel we heed. Many so-called experts give advice for the body—without thought for the spirit. Anyone who accepts direction contrary to the Word of Wisdom, for example, forsakes a law revealed to bring both physical and spiritual blessings.27 Some recommendations regarding use of our reproductive organs are based solely—and inadequately—upon physical considerations. Beware of such one-sided views! Paul taught that “if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live.”28

That caution pertains to pornography, which is highly addictive. Scriptural warning is clear: “Let not sin therefore reign in your mortal body, that ye should obey it in the lusts thereof.”29 In time, addictions enslave both the body and the spirit. Full repentance from addiction is best accomplished in this life, while we still have a mortal body to help us.

As children of God, we should not let anything enter the body that might defile it. To allow sensors of sight, touch, or hearing to supply the brain with unclean memories is a sacrilege. We will cherish our chastity and avoid “foolish and hurtful lusts, which drown [us] in destruction and perdition.”30We will “flee these things; and follow after righteousness, godliness, faith, love, patience, [and] meekness”31—traits that edify the whole soul.

We Are Children of God, Russell M. Nelson, General Conference October 1998