What is metaphysics definition?

Metaphysics is a branch of philosophy that deals with the fundamental nature of reality, including the relationship between mind and matter, between substance and attribute, and between cause and effect. It explores questions about the nature of existence, time and space, causality, determinism and free will, and the nature of consciousness and the self. Metaphysical theories are often highly abstract and speculative, and do not necessarily have empirical evidence to support them. Some areas of metaphysical inquiry include ontology, which examines the nature of being and existence, epistemology, which deals with the nature of knowledge and belief, and cosmology, which seeks to understand the origin and structure of the universe. Metaphysical ideas have been influential in many areas of human thought, including theology, science, and art.