This book is Bishop Ryle’s clarion call for the careless believer lax about prayer. It is characteristically warm, and readable- but poignantly urgent. Prayerlessness was a problem in Bishop Ryle’s day, but it is endemic in ours. Almost no one is passionate about prayer anymore, swept up in the activities of life, sports, entertainment, and myriad diversions. This work is a potent remedy for spiritual apathy and weak Christianity. If you heed Ryle’s advice, your walk with the Lord will be energized by an infusion of vitality and spiritual power you never imagined would be possible.