Pain and suffering on this earth?

As strobel puts it: Is the difference between us and God greater than that of us and a bear? Then imagine a bear in a trap and a ranger who out of sympathy wants to liberate the bear. He tries to win the bears confidence but the bear will not give in. So he has to shoot the bear full of drugs. The bear, however thinks this is an attack and that the ranger is trying to harm him and doesn't realize its out of compion. Then, in order to get the bear out of the trap he has to push the bear into the trap further to release the tension of the spring. Had the bear been conscious he would have been even more convinced that the ranger was out to hurt him. But the bear would be wrong because he is not a human and cannot fully understand. Likewise we are not God and cannot fully understand the things that happen to us on this earth, but even the greatest pains and the toughest cancers will not compare to the life to come if we place our trust in God.