4 Blessed art thou, Nephi,for those things which thou hast done; for I have beheld how thou hast with unwearyingness declared the word, which I have given unto thee, unto this people. And thou hast not feared them, and hast not sought thine own life, but hast sought my will, and to keep my commandments. [this sounds like Joseph Smith's description of those who receive C&E]

5 And now, because thou hast done this with such unwearyingness, behold, I will bless thee forever; and I will make thee mighty in word and in deed, in faith and in works; yea, even that all things shall be done unto thee according to thy word, for thou shalt not ask that which is contrary to my will.
(Helaman 10:4-5)

So my point is that the Book of Mormon is all about how to receive one's CE and the Second Comforter. This is why the prophets and apostles today preach until they're blue in the face that we must study the scriptures-especially the Book of Mormon; because it will teach us how to come unto Christ [Second Comforter]. The Church of Jesus Christ of Latter-day Saints has the purpose of bringing all men unto Christ [receive the Second Comforter]. The temple endowment shows the steps we must take to penetrate the veil and enter into the presence of Christ [Second Comforter]. The biggest hurdle to receiving this blessing is our own unbelief [aka lack of faith]. So I join in with others to testify that we are "they" to whom the Book of Mormon was written and it admonishes us to exercise our faith to receive our CE and the Second Comforter so that we can dwell in his presence now and be prepared for his coming. Age and experience were not a factor in the lives of Nephi, Jacob, and Mormon. But faith was the determinant.

I, Nephi, having been born of goodly parents, therefore I was taught somewhat in all the learning of my father; and having seen many afflictions in the course of my days, nevertheless, having been highly favored of the Lord in all my days; yea, having had a great knowledge of the goodness and the mysteries of God, therefore I make a record of my proceedings in my days.

And being thus overcome with the Spirit, he was carried away in a vision, even that he saw the heavens open, and he thought he saw God sitting upon his throne, surrounded with numberless concourses of angels in the attitude of singing and praising their God.

For what I seal on earth, shall be brought against you at the judgment bar; for thus hath the Lord commanded me, and I must obey. Amen.

Behold, this is the doctrine of Christ, and there will be no more doctrine given until after he shall manifest himself unto you in the flesh. And when he shall manifest himself unto you in the flesh, the things which he shall say unto you shall ye observe to do.

1 And it came to pass that the thirty and fourth year passed away, and also the thirty and fifth, and behold the disciples of Jesus had formed a church of Christ in all the lands round about. And as many as did come unto them, and did truly repent of their sins, were baptized in the name of Jesus; and they did also receive the Holy Ghost.

2 And it came to pass in the thirty and sixth year, the people were all converted unto the Lord, upon all the face of the land, both Nephites and Lamanites, and there were no contentions and disputations among them, and every man did deal justly one with another.

3 And they had all things common among them; therefore there were not rich and poor, bond and free, but they were all made free, and partakers of the heavenly gift.

JST, Hebrews 6:4
4 For he hath made it impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,

12 And they did not walk any more after the performances and ordinances of the law of Moses; but they did walk after the commandments which they had received from their Lord and their God, continuing in fasting and prayer, and in meeting together oft both to pray and to hear the word of the Lord.