Never before published except as a series of articles (one per chapter) in an academic journal, this book on contemplation was revised by Merton shortly before his untimely death. The material bridges Merton's early work on Catholic monasticism, mysticism, and contemplation with his later writing on Eastern, especially Buddhist, traditions of meditation and spirituality.

Merton was still tinkering with this book when he died; it was the book he struggled with most during his career as a writer. But now the Merton Legacy Trust and experts have determined that the book makes such a valuable contribution as his major comprehensive presentation of contemplation that they have allowed its publication.