Remain in peace; the fervor of devotion does not depend upon yourself; all that lies in your power is the direction of your will. Give that up to God without reservation. The important question is not how much you enjoy religion, but whether you will whatever God wills. Humbly confess your faults; be detached from the world, and abandoned to God; love him more than yourself, and his glory more than your life; the least you can do is to desire and ask for such a love. God will then love you and put his peace in your heart.