Our Dual Nature- 2 Nephi 2:22-25

And now, behold, if Adam had not transgressed he would not have fallen, but he would have remained in the garden of Eden. And all things which were created must have remained in the same state in which they were after they were created; and they must have remained forever, and had no end.
And they would have had no children; wherefore they would have remained in a state of innocence, having no joy, for they knew no misery; doing no good, for they knew no sin.
But behold, all things have been done in the wisdom of him who knoweth all things.
Adam fell that men might be; and men are, that they might have joy.

COMMENTARY

Having no joy, for they knew no misery; doing no good, for they knew no sin
It is true that one cannot see in pitch darkness. But also one cannot see in blinding light. Vision only works by varying degrees of contrast between the two. Damnation can be living in a state of suffering, but it can also be living in a state of complete numbness. At its root damnation means simply to never progress, and one cannot progress if there do not exist both forces and opposite forces. It is only in the interplay of these contrasting forces that an entity is able to move, to turn, to reach a destination.

Adam fell that men might be; and men are, that they might have joy
All things have been done in the wisdom of him who knoweth all things
If Adam fell to allow our existence, and our existence is to come to God and find everlasting joy, then Adam fell for our everlasting joy. This suggests that this world of good and evil was always part of the plan. Personally that brings me a great deal of comfort. It means that the path of humanity never wandered outside of God’s agenda.
It also means that my being born with flaws was not a flaw in the system. I was intended to be imperfect, so that I could grow from wrestling with those imperfections. It is a struggle, to be sure, but it is made a little bit lighter by knowing that it is supposed to be a struggle.

Our Dual Nature- 2 Nephi 2:11

For it must needs be, that there is an opposition in all things. If not so, my firstborn in the wilderness, righteousness could not be brought to pass, neither wickedness, neither holiness nor misery, neither good nor bad. Wherefore, all things must needs be a compound in one; wherefore, if it should be one body it must needs remain as dead, having no life neither death, nor corruption nor incorruption, happiness nor misery, neither sense nor insensibility.

COMMENTARY

For it must needs be, that there is an opposition in all things
Life without contrast would be meaningless. If there were not two separate states then one would not require any action to reach the desired state, they would already be there. If there were two separate states, but no medium of resistance between them, then one would not require any effort to reach the desired state, they would transition freely.
Doing good would be meaningless, if good was the only option. Doing good would also meaningless, if evil existed, but there was no temptation to perform it. We call someone’s actions good because of how they overcome the opposition to do that good.

Having no life neither death, nor corruption nor incorruption, happiness nor misery, neither sense nor insensibility
Adam and Eve may have had the perfect paradise in Eden, but could they possibly have realized such? Could they be grateful for health and comfort having never experienced sickness or pain? Could they be happy having never felt sorrowful? Was giving birth to children even an option when there wasn’t a possibility for death at the other end of the spectrum?
God does want us to be innocent, but can we say He wants us to be ignorant?
In the Garden of Eden everything was clean, but it meant nothing because filthiness wasn’t an option. Again, if all God wanted was cleanliness, all He had to do was not plant a Tree of Knowledge of Good and Evil. But He did, and through that filthiness entered the world, and now being restored to cleanliness requires a difficult path of repentance on our part and the sacrifice of God’s Son. Wouldn’t this suggest that the difficult path was His intention for us? That the value is in the struggle?