The final principle we need to learn, exemplify, and minister is "How to yield to the influence of the Holy Ghost." The Holy Ghost has not yet received a physical body. He is a personage of spirit and a member of the Godhead. His job is to testify of the Father and the Son and guide, comfort, and sanctify us. The Light of Christ is given to all people to prompt them as to what is right and wrong, but the gift of the Holy Ghost is only given to those who are baptized and confirmed. The gift of the Holy Ghost entitles one to receive the companionship of the Holy Ghost whenever one is worthy. When the Holy Ghost is with us, he changes us from natural, carnal people to spiritual, holy people. As Parley P. Pratt once explained the Holy Ghost, "expands and purifies all the natural passions and affections, and adapts them by the gift of wisdom to their lawful use. . .It develops beauty of person, form and features. It tends to health, vigor, animation, and social feeling. It develops and invigorates all the faculties of the physical and intellectual man. It strengthens, invigorates, and gives tone to the nerves. In short it is, as it were, marrow to the bone, joy to the heart, light to the eyes, music to the ears, and life to the whole being." (Key to the Science of Theology, pp. 96-97)
It is easy to tell when the Holy Ghost is with you because negative emotions diminish. You don’t feel envy, jealousy, hatred, ill-will, discouragement or harbor desires to hurt anyone or to lie, steal, cheat, or do anything wrong. The adversary may tempt you with such thoughts, but if the Spirit is with you, you quickly dismiss negative thoughts and entertain only that which is good.
The mistake we often make, however, if that sometimes we tend to think that when the Holy Ghost is with us everything will be rosy and wonderful. But often the Holy Ghost pushes us out of our comfort zone and into new realms where we can grow into better people. If we trust in the Spirit to lead and change us, we will experience some stress, but it will always lead to being a better person. If we resist the Spirit, he leaves us and we are left to our own resources to survive in this world. The Spirit will guide us to overcome all negative traits, but we have to yield to his promptings in order to experience the mighty change.