This is Part II of the Treatise: ""Treatise on the Love of God,"" an authoritative work which reflects perfectly the mind and heart of Francis de Sales as a great genius and a great saint. It contains twelve books. The first four give us a history, or rather explain the theory, of Divine love, its birth in the soul, its growth, its perfection, and its decay and annihilation; the fifth book shows that this love is twofold - the love of complacency and the love of benevolence; the sixth and seventh treat of affective love, which is practiced in prayer; the eight and ninth deal with effective love, that is, conformity to the will of God, and submission to His good pleasure. The last three resume what has preceded and teach how to apply practically the lessons taught therein.