In this talk, Elder Bednar talks about the importance of receiving the gift of the Holy Ghost as part of our baptismal covenant.  He emphasizes the importance of recognizing what thoughts and actions bring the Spirit and which ones withdraw the Spirit.  He discusses the Liahona that guided Lehi's family but worked according to their faithfulness.  The Holy Ghost is our spiritual Liahona - the Spirit will guide us as we are faithful.  As you study this talk, the Holy Ghost will help you know what you need to do to have its companionship in your life more abundantly.  

https://www.churchofjesuschrist.org/study/general-conference/2006/04/that-we-may-always-have-his-spirit-to-be-with-us?lang=eng