Shakespeare's "Hamlet" contains a profound spiritual message for mankind that has been largely unrecognized for centuries. The meaning of Hamlet so perplexed critics over the last four hundred years that many finally concluded, after immense struggle, that the play lacks a binding philosophy. Nothing, in fact, is more wrong.

"Quintessence of Dust" now explains how Shakespeare meticulously crafted every scene to convey, through our emotional involvement in the drama, a central spiritual message. The book also explains by a single coherent theme practically every aspect of the play that has...