This is one of the greatest treasures of Catholic literature. Dictated by her to secretaries while she was in a state of ecstasy for thirty days and completed in 1370. It reads as spoken by God the Father, and is in fact a fascinating mystical exposition of Catholic doctrine, full of practical insights into the spiritual life. Among a few of the topics explained here are: Why sinners are insatiable and unbearable to themselves; How finite pains can receive infinite merits; Christ as the Bridge one must cross to attain eternal life; How God manifests Himself to the soul who loves Him; How virtuous, holy priests are like the sun; How God will reform His church, and much more. St. Catherine of Siena-counsellor of Popes and statesmen-is one of only three women Doctors of the Church. The Dialogue is her greatest writing-or rather, it is a message from God to the whole Church.