President Russell M. Nelson
Only those who are married in the temple and whose marriage is sealed by the Holy Spirit of Promise will continue as spouses after death and receive the highest degree of celestial glory, or exaltation. A temple marriage is also called a celestial marriage. Within the celestial glory are three levels. To obtain the highest, a husband and wife must be sealed for time and all eternity and keep their covenants made in a holy temple.
The noblest yearning of the human heart is for a marriage that can endure beyond death. Fidelity to a temple marriage does that. It allows families to be together forever. Read the entire original article