Prepare yourselves mentally. A mission requires a great deal of mental preparation. You must memorize missionary discussions, memorize scriptures, and oftentimes learn a new language. The discipline to do this is learned in your early years. Establish now the daily practice of reading the scriptures ten to fifteen minutes each day. If you do so, by the time you reach the mission field, you will have read all four of the standard works. I urge you to read particularly the Book of Mormon so that you can testify of its truthfulness as the Lord has directed.