Without Crucifixion, there can be no resurrection. – Mark Batterson
Jesus is the number one example of getting a reward that may require pain.
Jesus, God manifest in flesh, came to this earth knowing the pain that was to come, but His focus was on the reward.
And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory. 1 Timothy 3:16
And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross. Philippians 2:8
Crucifixion was the most dreaded and painful death in ancient times.
Crucifixion often began with flogging. This was to weaken a person before the crucifixion. The whip was made of leather attached to a wooden handle. At the end of the whip would have glass, nails, or bones. The whip was made to rip through the flesh which causes it to tear skin and muscle from the bone.
After being whipped Jesus was made to carry the cross through the city. Jesus then had nails driven into his hands and feet. During all of His suffering, He was being mocked by the crowd who was watching Him suffer. Jesus hung on the Cross for hours before taking His last breath.
During this whole process, Jesus knew the pain that was to come, but He also knew the reward.
Anytime there is a true reward earned there is always a sacrifice made.
There may be some pain or hurt that we have to go through, but remember the reward that is coming.