Everybody knows that the brethren have repeatedly told us that we live far beneath our privileges. Consequently we also live far beneath our privileges in the companionship of the Holy Ghost. If we have the Holy Ghost the way we ought to, we will have all the other spiritual privileges the way we ought to as well. If we aren't living up to our spiritual privileges, we aren't living up to the measure to which we ought to enjoy the gift of the Holy Ghost. It is speaking of the Holy Ghost that God said to Adam:
Moses 6: 61 Therefore it is given to abide in you; the record of heaven; the Comforter; the peaceable things of immortal glory; the truth of all things; that which quickeneth all things, which maketh alive all things; that which knoweth all things, and hath all power according to wisdom, mercy, truth, justice, and judgment.
Think of the introduction to D&C 76 in which Joseph Smith and Sidney Rigdon saw the three degrees of glory:
D&C 76: 11 We, Joseph Smith, Jun., and Sidney Rigdon, being in the Spirit on the sixteenth day of February, in the year of our Lord one thousand eight hundred and thirty-two—
12 By the power of the Spirit our eyes were opened and our understandings were enlightened, so as to see and understand the things of God—
13 Even those things which were from the beginning before the world was, which were ordained of the Father, through his Only Begotten Son, who was in the bosom of the Father, even from the beginning;
Acts 2:4 And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
1 Samuel 10:10 And when they came thither to the hill, behold, a company of prophets met him; and the Spirit of God came upon him, and he prophesied among them.
Moses 6:26 And it came to pass that Enoch journeyed in the land, among the people; and as he journeyed, the Spirit of God descended out of heaven, and abode upon him.
27 And he heard a voice from heaven, saying: Enoch, my son, prophesy unto this people, and say unto them—Repent, for thus saith the Lord: I am angry with this people, and my fierce anger is kindled against them; for their hearts have waxed hard, and their ears are dull of hearing, and their eyes cannot see afar off;
The point is that if we live far beneath our privileges in spiritual gifts then we necessarily are also living far beneath our privileges regarding the gift of the Holy Ghost. The Holy Ghost is the means through which these spiritual gifts are bestowed. We are enjoying a measure of the Holy Ghost that is far beneath what the Lord would like to bestow upon us.
Now what is somewhat sad about all this is that if I say to a man that he and I both have far less of the Holy Ghost than the Lord would like to privilege us with, he will likely shrug it off. If I say that we are weak in our enjoyment of the Holy Ghost, it likely won't mean much to him.
But if I say to the same man that he and I are very weak in our knowledge of what kind of person Jesus is, he might feel like that I have just insulted the two of us. It will strike him as a more serious matter.
And what makes that sad is that they are really the same issue. The Holy Ghost is the means God has given to us by which we come to know Jesus Christ and the Father. That is the system. It is the whole point. Christ even calls it "his doctrine". The way we come to know the Father and the Son is by growing into the Gift of the Holy Ghost. As we have the Holy Ghost with us we KNOW who the Father is and who the Son is in a way that no amount of explanation and discussion could have ever conveyed to our minds. The greater the measure to which we enjoy this gift, the greater is the measure of our knowledge of just who Jesus Christ is, as well as who the Father is. We see this taught by Christ as his doctrine:
3 Nephi 11: 35 Verily, verily, I say unto you, that this is my doctrine, and I bear record of it from the Father; and whoso believeth in me believeth in the Father also; and unto him will the Father bear record of me, for he will visit him with fire and with the Holy Ghost.
36 And thus will the Father bear record of me, and the Holy Ghost will bear record unto him of the Father and me; for the Father, and I, and the Holy Ghost are one.
Note that it says that the Father will visit that man with the Holy Ghost and thus will the Father bear record of Christ. It is by having the Holy Ghost that we come to know who Christ and his Father are. It is the means by which the Father "bears record" of the Son, because nothing explains to us who Christ is like having the Holy Ghost come upon us.
Consequently, if we are living far beneath our privileges in the measure to which we enjoy the gift of the Holy Ghost, then we are also living far beneath the knowledge we should have of just what sort of being Jesus Christ is.
We may have traditions, teachings, explanations, preachings, even scriptures about who Jesus Christ is. But the whole plan for coming to know Christ, is for us to get the Holy Ghost. The more we have the Holy Ghost, the more we know just who Christ is, and the more we can emulate, love, and worship him.
When we knowingly don't care that we live far beneath our privileges, then we are not just rejecting spiritual gifts, we are rejecting the knowledge of the Father and his Son because we have rejected the means by which that knowledge is intended to be conveyed to our souls. We should do better in this matter than we have done heretofore. Sure, yes, we do know the Father and the Son. But not anywhere near to the degree that they would have us know them.