What do we do with suffering? As far as I can see, we have two choices — we either transform our suffering into something else, or we hold on to it, and eventually pass it on.
In order to transform our pain, we must acknowledge that all people suffer. By understanding that suffering is the universal unifying force, we can see people more compassionately, and this goes some way toward helping us forgive the world and ourselves. By acting compassionately, we reduce the world's net suffering and defiantly rehabilitate the world. It is an alchemical act that transforms pain into beauty. This is good. This is beautiful.
To not transform our suffering and instead transmit our pain to others,...compounds the world's suffering. Most sin is simply one person's suffering passed on to another. This is not good. This is not beautiful.
The utility of suffering, then, is the opportunity it affords us to become better human beings. It is the engine of our redemption.
What was extraordinary was that I saw clearly, indisputably, finally, that the child, the grass, the trees, the sky above were all woven of the same material, were all part of the same fabric, which was the fabric of which the universe is made, and that this fabric lived. As pointed contrast, the cement sidewalk lay ugly and dead, a scar in the picture; except for it, the whole scene was transcendent with beauty, the colors had an intensity, a purity not present in "real" life, and the vision was imbued with a feeling of the perfect peace and oneness and benevolence of the universe.