The Science of Mind is Ernest Holmes's influential statement of the philosophy and spiritual practice that became the foundation of the Religious Science movement. First published in 1926, the work presents Holmes's central teaching that the universe is governed by universal spiritual laws which can be consciously applied through thought, belief, and mental discipline. Drawing upon a wide range of sources-including New Thought philosophy, Christian mysticism, and classical metaphysical traditions-Holmes argues that human thought participates in a universal creative intelligence. By understanding the relationship between mind, belief, and reality, individuals can transform their circumstances through disciplined thinking and spiritual awareness. The book explores principles such as the creative power of thought, the unity of life, and the practical application of spiritual law in daily living. Over the decades, The Science of Mind has become one of the central texts of modern metaphysical spirituality. Its teachings have influenced generations of readers interested in personal transformation, spiritual philosophy, and the relationship between consciousness and experience. Holmes's work remains a cornerstone of the New Thought tradition and a significant contribution to twentieth-century spiritual literature.