I think that the Apostle Paul wrote it best and I can't say it any better.

Therefore we do not give up; even though our outer person is being destroyed, our inner person is being renewed day by day. For our momentary light affliction is producing for us an absolutely incomparable eternal weight of glory. So we we do not focus on what is seen, but on what is unseen; for what is seen is temporary, but what is unseen is eternal. 2 Corinthians 4: 16-18

Of all the things I've lost, I miss my mind the most. - Mark Twain.