Philosophical Taoism, also known as Daoism, is a school of thought that emphasizes living in harmony with the Tao, or 'the Way,' which is the fundamental principle that underlies and unites all aspects of the universe. This approach focuses on naturalness, simplicity, and spontaneity, promoting a way of life that seeks to align with the natural flow of life and existence rather than forcefully striving against it. Philosophical Taoism contrasts with religious Taoism by prioritizing metaphysical concepts and ethical teachings over rituals and deities.