My reason for wanting to learn all I can about the Atonement is partly selfish: Our salvation depends on believing in and accepting the Atonement. Such acceptance requires a continual effort to understand it more fully. The Atonement advances our mortal course of learning by making it possible for our natures to become perfect.  All of us have sinned and need to repent to fully pay our part of the debt. When we sincerely repent, the Savior’s magnificent Atonement pays the rest of that debt.....

Any increase in our understanding of His atoning sacrifice draws us closer to Him.