From a Christian point of view it makes sense that we would have the mixed experience of pain and pleasure that we do.
We can expect of God to delightfully adorn the mortal world with hints of heaven, pointing our passions, and stealing our thoughts away to those infinite places in which we were meant to dwell. We can see the portraits on heaven’s walls, and picture the infinite heaven’s hall. We first learn of heaven on earth. We first prepare for glory in the dim light of now.
Hell also is known first through its heartening hints, here and now. Suffering and evil in this world are measured warnings for that unknown moment when we leave for the next world. God is just as much the author of heaven’s signposts as of hell’s howls. Both are to prepare us for the inevitable end we all must face. Sure we may scorn God for allowing evil in this world, but when we’re lain in the grave and our souls sink us lower by the weight of our sins, we cannot say we weren’t warned.
Perhaps the essence of heaven is to live beyond yourself and hell is to live within yourself.