Prayer is the master key. A key may fit one door of a house, but when it fits all doors it may well claim to be a master key. Such and no less a key is prayer to all earthly problems. Contents: Chapter 1 - Law Of Reversibility Chapter 2 - Dual Nature Of Consciousness Chapter 3 - Imagination And Faith Chapter 4 - Controlled Reverie Chapter 5 - Law Of Thought Transmission Chapter 6 - Good Tidings Chapter 7 - The Greatest Prayer