The sub-field of philosophy that studies the fundamental nature of reality is known as metaphysics. It is concerned with studying the relationship between substance and attribute, mind and matter, and potentiality and actuality. It aims to study the different forms of existence and what is it for something to exist. It focuses on understanding the principles of existence, space and time, objects and their properties, possibility, and cause and effect. Metaphysics tries to explain our everyday and scientific perception of the world. It defines properties, objects, concepts and other entities that make up the world using different methods. This field has applications in technology, science and other branches of philosophy like aesthetics, philosophy of religion and philosophy of morality. This book aims to shed light on some of the unexplored aspects of this discipline. The book studies, analyzes and upholds the pillars of metaphysics and its utmost significance in modern times. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.