Even though denying to believe some spark will exist in the mind of almost every person at one time or another. There is an impending time when reality of death enters the conscious mind. When disease, old age and other infirmities cause suffering, death becomes a blessing. When the unexpected and untimely passing of the youth or healthy occurs it causes us to ask why and grieve more intensely.
Classical theism on the other hand has determined that all family relationships as we know them end at death as we join some eternal realm of joy as singles in the presence of the creator.
There is no exploration of eternal possibilities because their has been no revelation in the classical theistic dogmas. Until Joseph Smith opened the heavens as a prophet of God no new information had come into theology of what our eternal live could be.
With no shortage of materials or limitations other than natural eternal law there is no end to creation. Traditional doctrines make no mention of creation other than this earth. Classical Theism has created a one planet creator, a static being with no ability to increase. The doctrinal mis-interpretations of a single book of scripture here on this earth limits their view to such a doctrine. Due to their closed view they have made Jesus Christ the savior of a single planet as well.
Theology of the restored gospel of Jesus Christ addresses some of the important things that God gives us here on earth that will continue with us in the next life. Adam and Eve were literally given a world. Imagine a married couple with their own world. The primary purpose of this world was to multiply and replenish it with life. What is to stop that event from being repeated? As God ordained marriage men and women were intended to be together as co-creators here on earth and the eternities. Her we learn something of the responsibilities associated with creating life and nurturing it. Isn't that what God has done?
Our spiritual existence before birth was a creation of such a dimension. It stems from a loving relationship, not a superstitious speaking into existence. Earth life is a process of extending a partial experience of those powers to us, God's children. Being created in his image and because of his love for us, life here in mortality is a teaching and learning phase of eternity.
There is no reason to believe that death separates those that marry and remain faithful to the ideals that God has established in his commandments and covenants. Adam and Even were married in the Garden of Eden. There was no"until death do you part" in whatever ceremony God performed as there was no death at the time.