Gift of the Holy Ghost
The Holy Ghost becomes a person’s constant companion making them eligible to receive revelation. “The gift of the Holy Ghost is the privilege given to a baptized person, after he has been confirmed a member of the Church, to receive guidance and inspiration from the Holy Ghost. … A person may be temporarily guided by the Holy Ghost without receiving the gift of the Holy Ghost. … Today many nonmembers of the Church learn, by the power of the Holy Ghost, that the Book of Mormon is true (see Moroni 10:4-5). But that flash of testimony leaves them if they do not receive the gift of the Holy Ghost” (Gospel Principles, pp. 131,132). Also see: Confirmation.