While Christianity was able to agree with pagan writers that inordinate attachment to earthly goods can lead to unnecessary pain and grief, it also taught that the answer to this was not to love things less but to love God more than anything else. Only when our greatest love is God, a love that we cannot lose even in death, can we face all things with peace. Grief was not to be eliminated but seasoned and buoyed up with love and hope.
It fits to glorify God - it not only fits reality, because God is infinitely and supremely praiseworthy, but it fits us as nothing else does. All the beauty we have looked for in art or faces or places - and all the love we have looked for in the arms of other people - is only fully present in God himself. And so in every action by which we treat him as glorious as he is, whether through prayer, singing, trusting, obeying, or hoping, we are at once giving God his due and fulfilling our own design.
Christianity offers not merely a consolation but a restoration - not just of the life we had but of the life we always wanted but never achieved. And because the joy will be even greater for all that evil, this means the final defeat of all those forces that would have destroyed the purpose of God in creation, namely, to live with his people in glory and delight forever.