In our day the Book of Mormon is the primary source to which we should turn for help in learning how to invite the constant companionship of the Holy Ghost. The description in the Book of Mormon of the Liahona, the director or compass used by Lehi and his family in their journey in the wilderness, specifically was included in the record as a type and a shadow for our day, and as an essential lesson about what we should do to enjoy the blessings of the Holy Ghost. As we strive to align our attitudes and actions with righteousness, then the Holy Ghost becomes for us today what the Liahona was for Lehi and his family in their day. The very factors that caused the Liahona to work for Lehi will likewise invite the Holy Ghost into our lives. And the very factors they caused the Liahona not to work anciently will likewise cause us to withdraw ourselves from the Holy Ghost today. The Holy Ghost operates in our lives precisely as the Liahona did for Lehi and his family, according to our faith and diligence and heed.