Maher Ahmed Al-Soufi's 'The Great Cosmic Encyclopedia: Signs of God in Sleep, Visions, Dreams, and Istikhara Vision' offers an profound exploration into the spiritual dimensions of human experience. This comprehensive work examines how divine messages manifest through various states of consciousness, from ordinary sleep to profound visions and prophetic dreams. It meticulously delves into the spiritual significance of dreams, providing insightful interpretations and illustrating their role as channels for divine guidance. The book also offers an extensive analysis of Istikhara, the prayer for divine guidance, explaining how its accompanying vision can illuminate paths forward. This encyclopedia is an invaluable resource for anyone seeking to understand the hidden meanings within their dreams and to connect more deeply with the divine wisdom that permeates our lives, providing a unique perspective on the mystical aspects of existence and spiritual communication.