The work urges Christians to recover persistent, intercessory prayer as the Church’s primary spiritual power, diagnosing a widespread lack of earnest petition and outlining biblical foundations and practical principles for effective pleading. It connects prayer with the ministry of the Spirit, presents models of persistent pleading and importunity, examines obstacles that restrain prayer, and describes the character and life that can sustain continual supplication. Chapters treat praying in the name of Christ, the secret of effectual prayer, and apostolic patterns, and conclude with guidance for daily intercession and an appeal for trained intercessors as the pathway to corporate renewal and revival.