Joseph Smith taught, quite profoundly,
Every man lives for himself. Adam was made to open the way of the world, and for dressing the garden. Noah was born to save seed of everything, when the earth was washed of its wickedness by the flood; and the Son of God came into the world to redeem it from the fall. But except a man be born again, he cannot see the kingdom of God. This eternal truth settles the question of all men's religion. A man may be saved, after the judgment, in the terrestrial kingdom, or in the telestial kingdom, but he can never see the celestial kingdom of God, without being born of water and the Spirit. He may receive a glory like unto the moon, [i.e., of which the light of the moon is typical], or a star, [i.e., of which the light of the stars is typical], but he can never come unto Mount Zion, and unto the city of the living God, the heavenly Jerusalem, and to an innumerable company of angels; to the general assembly and church of the Firstborn, which are written in heaven, and to God the judge of all, and to the spirits of just men made perfect, and to Jesus the Mediator of the new covenant, unless he becomes as a little child, and is taught by the Spirit of God. Wherefore, we again say, search the revelations of God; study the prophecies, and rejoice that God grants unto the world Seers and Prophets. They are they who saw the mysteries of godliness; they saw the flood before it came; they saw angels ascending and descending upon a ladder that reached from earth to heaven; they saw the stone cut out of the mountain, which filled the whole earth; they saw the Son of God come from the regions of bliss and dwell with men on earth; they saw the deliverer come out of Zion, and turn away ungodliness from Jacob; they saw the glory of the Lord when he showed the transfiguration of the earth on the mount; they saw every mountain laid low and every valley exalted when the Lord was taking vengeance upon the wicked; they saw truth spring out of the earth, and righteousness look down from heaven in the last days, before the Lord came the second time to gather his elect; they saw the end of wickedness on earth, and the Sabbath of creation crowned with peace; they saw the end of the glorious thousand years, when Satan was loosed for a little season; they saw the day of judgment when all men received according to their works, and they saw the heaven and the earth flee away to make room for the city of God, when the righteous receive an inheritance in eternity. And, fellow sojourners upon earth, it is your privilege to purify yourselves and come up to the same glory, and see for yourselves, and know for yourselves. Ask, and it shall be given you; seek and ye shall find; knock, and it shall be opened unto you.--E&MS August, 1832. DHC 1:282-284. (TPJS page 12)
We need to realize that when we say that we are saved by grace that THESE are the grace we are talking about. They are manifested to men through the gift of the Holy Ghost.
We live far beneath our privileges. We know this.
But whether or not we are interested in "the abundance of the manifestations of his spirit", we should at least have our doctrine straight.
When we say we are saved by grace, the spiritual gifts and privileges we live far beneath with neither concern nor remorse are the graces we are talking about.