The book Survival Mechanism Theory: The Fourth Dimension and Its Applications is a detailed study and theory by W. Wheatley Smith that reveals the mysterious aspects of human survival. The author offers a new perspective on the concept of the fourth dimension, and also explains its influence on the processes of survival in difficult conditions. The book presents a number of fascinating cases and examples that help to understand the volume and practical applications of the theory of the fourth dimension in the real world. Readers will be able to deepen their knowledge of the physical and metaphysical aspects of survival, as well as learn to see and understand the world around them from a new perspective.