In Hinduism, Brahman connotes the highest Universal Principle, the Ultimate Reality in the universe. In major schools of Hindu philosophy, it is the material, efficient, formal and final cause of all that exists.For monist school of Hinduism, see: B. Martinez-Bedard (2006), "Types of Causes in Aristotle and Sankara", Thesis – Department of Religious Studies (Advisors: Kathryn McClymond and Sandra Dwyer), Georgia State University, pages 18–35</ref> It is the pervasive, genderless, infinite, eternal truth and bliss which does not change, yet is the cause of all changes. Brahman as a metaphysical concept is the single binding unity behind the diversity in all that exists in the universe.