Although man experiences sleep every day, he never realizes it as the greatest blessing of his existence, until he suffers from lack of it. Man disregards all natural blessings, and not regarding them as blessings he remains discontented. A person who can see the blessing which is in life itself will be so thankful that whatever may be lacking in his outward life will seem insignificant. The inner blessing is so much greater, compared with what is lacking in the outer world, that, indeed, there is no comparison between them.