What is commonly called death does not destroy the body, it only causes a separation of spirit and body, but the principle of life, inherent in the native elements, of which the body is composed, still continues with the particles of that body and causes it to decay, to dissolve itself into the elements of which it was composed, and all of which continues to have life. When the spirit given to man leaves the body, the tabernacle begins to decompose. Is that death? No, death only separates the spirit and body, and a principle of life still operates in the untenanted tabernacle, but in a different way, and producing different effects from those observed while it was tenanted by the spirit. There is not a particle of element which is not filled with life, and all space is filled with element; there is no such thing as empty space, though some philosophers contend that there is.
Life in various proportions, combinations, conditions, etc., fills all matter. Is there life in a tree when it ceases to put forth leaves? You see it standing upright, and when it ceases to bear leaves and fruit you say it is dead, but that is a mistake. It still has life, but that life operates upon the tree in another way, and continues to operate until it resolves it to the native elements. It is life in another condition that begins to operate upon man, upon animal, upon vegetation, and upon minerals when we see the change termed dissolution. There is life in the material of the fleshly tabernacle, independent of the spirit given of God to undergo this probation. There is life in all matter, throughout the vast extent of all the eternities; it is in the rock, the sand, the dust, in water, air, the gases, and in short, in every description and organization of matter, whether it be solid, liquid, or gaseous, particle operating with particle.
I have heard some philosophers argue that because no body could move without displacing other matter, therefore there must be empty space. That reasoning is nonsense to me, because eternity is, was, and will continue to be full of matter and life. We put a ship in motion on the water, and have we created an empty space? No, we have only changed the position of matter. Men and animals move upon the earth, birds and fishes cleave the elements they are organized to operate in, but do they leave a track of empty space? No, for all eternity is full of matter and life. True, element is capable of contraction and expansion, but that does not by any means imply empty space. You see life in human beings and in the growing vegetation, and when that spirit of life departs, another condition of life at once begins to operate upon the organization which remains. By way of illustration I will quote one passage from the Book of Job, who in his afflictions was visited by several friends, and after he had concluded that they were all miserable comforters, he exclaimed, "Though worms destroy this body, yet in my flesh shall I see God." To make this passage clearer to your comprehension, I will paraphrase it, Though my spirit leave my body, and though worms destroy its present organization, yet in the morning of the resurrection I shall behold the face of my Savior, in this same tabernacle; that is my understanding of the idea so briefly expressed by Job. 3:276-7.
Man Should Live Out His Days—It is not the design of the Father that the earthly career of any should terminate until they have lived out their days; and the reason that so few do live out their days is because of the force of sin in the world and the power of death over the human family. To these causes, and not to the design of the Creator, may be attributed the fact that disease stalks abroad, laying low the aged, middle-aged, youth, and infants, and the human family generally by millions. 14:230.
So live that when you wake in the spirit-world you can truthfully say, "I could not better my mortal life, were I to live it over again." I exhort you, for the sake of the House of Israel, for the sake of Zion which we are to build up, to so live, from this time, henceforth, and forever, that your characters may with pleasure be scrutinized by holy beings. Live godly lives, which you cannot do without living moral lives. 8:164.
We Should Not Mourn for the Righteous Dead—Those who have honored their calling and Priesthood to the end die in the Lord, and their works do follow them. 13:75.
It is a great cause of joy and rejoicing and comfort to his friends to know that a person has passed away in peace from this life, and has secured to himself a glorious resurrection. The earth and the fulness of the earth and all that pertains to this earth in an earthly capacity is no comparison with the glory, joy and peace and happiness of the soul that departs in peace. 12:186.
Mourning for the righteous dead springs from the ignorance and weakness that are planted within the mortal tabernacle, the organization of this house for the spirit to dwell in. No matter what pain we suffer, no matter what we pass through, we cling to our mother earth, and dislike to have any of her children leave us. We love to keep together the social family relation that we bear one to another, and do not like to part with each other; but could we have knowledge and see into eternity, if we were perfectly free from the weakness, blindness, and lethargy with which we are clothed in the flesh, we should have no disposition to weep or mourn. 4:131.
Nothing remains here for us but to pay our last respects to that which came from mother earth. It was formed and fashioned and the spirit was put into it, and it has grown and become what it is, and the spirit having departed, the body lies ready to return to the bosom of its mother, there to rest until the morning of the resurrection. But the life and intelligence which once dwelt in that body still live, and Sister Aurelia moves, talks, walks, enjoys and beholds that which we cannot enjoy and behold while we are in these tabernacles of clay. She is in glory; she has passed the ordeals and has reached a position in which the power of Satan has no influence upon her. The advantage of this Priesthood is that when persons yield obedience to it, they secure to themselves the sanction of him who is its author, and who has bestowed it upon the children of men. His power is around them and defends them; and when they pass into the spirit world they are out of the reach of the power of Satan. Where the pure in heart are the wicked cannot come. This is the state of the spirit world. 14:229.
When death is past, the power of Satan has no more influence over a faithful individual; that spirit is free, and can command the power of Satan. The penalty demanded by the fall has been fully paid; all is accomplished pertaining to it, when the tabernacle of a faithful person is returned to the earth. All that was lost is passed away, and that person will again receive his body. When he is in the spirit world, he is free from those contaminating and condemning influences of Satan that we are now subject to. Here our bodies are subject to being killed by our enemies—our names to being cast out as evil. We are persecuted, hated, not beloved: though I presume that we are as much beloved here as the spirits of the Saints are in the spirit world by those spirits who hate righteousness. It is the same warfare, but we will have power over them. Those who have passed through the veil have power over the evil spirits to command, and they must obey. 7:240-241.