Great book on contemplative living

The Rev. Jean Pierre de Caussade, a French Jesuit who died in 1751, wrote an amazing document called Abandonment to Divine Providence. It's available free online from Christian Classics Ethereal Library. It says essentially that there is no greater sanctity a human can achieve than to live in the present moment, doing at each and every moment "what lays before us", since everything in every moment comes directly from God for the purpose of sanctifying us in ways we cannot possibly perceive.