God works in ways we do not totally understand. We question pain. We wonder why. We can even become angry and bitter. Bitterness is one of Satan's great tools to keep us far away from God.
In 1 Peter 2: 24, the Bible says “He(Jesus) himself bore our sins” in his body on the cross, so that we might die to sins and live for righteousness; “by his wounds you have been healed.”
Jesus suffered so that we could experience healing. Though I cannot say that I am "over the death" of my brother, I can say that the anger and bitterness has been healed after this horrible tragedy. Wouldn't it be so nice if we could just snap a finger and all the hurts and wounds would just disappear, and we could live happily ever after?
But this is Satan’s world. And the Devil doesn’t work that way. He wants to keep those wounds planted deep inside of us, never intending for us to let go of them. He will keep poking at the same spot so that it will never heal.
For me, knowing that Jesus suffered and that he showers me with his grace, helps me to continue to heal. Isn't his healing grace amazing?