Keep in mind Elder Rasbands conf talk in Oct 2016 called "Lest Thou Forget": where he makes a promise.

• (some quotes from) Lest Thou Forget (Elder Rasband in General Conference, Oct 2016)
  

  "When I have counseled individuals such as my friend, I have explored their decisions made over the years which led them to forget sacred experiences, to weaken, and to doubt. I encouraged them, as I encourage you now, to recall, especially in times of crisis, when you felt the Spirit and your testimony was strong; remember the spiritual foundations you have built. I promise that if you will do this, avoiding things that do not build and strengthen your testimony or that mock your beliefs, those precious times when your testimony prospered will return again to your memory through humble prayer and fasting. I assure you that you will once again feel the safety and warmth of the gospel of Jesus Christ. 
  
  Each of us must first strengthen ourselves spiritually and then strengthen those around us. Ponder the scriptures regularly, and remember the thoughts and feelings you experience as you read them. Seek other sources of truth as well, but heed this caution from the scriptures: "But to be learned is good if they hearken unto the counsels of God." Attend Church meetings, especially sacrament meeting, and partake of the sacrament and renew covenants, including the promise to always remember the Savior, that His Spirit may ever be with you. 
  
  No matter what mistakes we have made or how imperfect we feel we are, we can always bless and lift others. Reaching out to them in Christlike service can help us feel the love of God deep within our hearts. 
  
  It is important to remember the powerful counsel found in Deuteronomy: "Keep thy soul diligently, lest thou forget the things which thine eyes have seen, and lest they depart from thy heart all the days of thy life: but teach them thy sons, and thy sons' sons."
  
  ....
  
  Many today have the same tradition of naming their children after scriptural heroes or faithful ancestors as a way of encouraging them not to forget their heritage. 
  
  .... 
  
  Never forget, question, or ignore personal, sacred spiritual experiences. The adversary's design is to distract us from spiritual witnesses, while the Lord's desire is to enlighten and engage us in His work. 
  
  Let me share a personal example of this truth. I distinctly recall a time when I received a prompting in answer to mighty prayer. The answer was clear and powerful. However, I failed to act immediately on the prompting, and after a period of time I began to wonder if what I had felt had been real. Some of you may have fallen for that deception of the adversary as well. 
  
  Several days later, I awoke with these powerful verses of scripture in my mind: 
  
  "Verily, verily, I say unto you, if you desire a further witness, cast your mind upon the night that you cried unto me in your heart. ... 
  
  "Did I not speak peace to your mind concerning the matter? What greater witness can you have than from God?"
  "

• See *excellent* talk by Elder Rasband in Oct 2016 general conference, whole thing very good, but could start from "also, in the book of mormon".