The meaning of life is a fundamental philosophical discussion of human existence, chiefly consisting of interpretations such as: "What is the origin of life?", "What is the nature of life (and of the universe in which we live)?", "What is the significance of life?", "What is the purpose of life?", and "What is valuable in life?" These questions have resulted in a wide range of competing answers and arguments, from scientific theories, to philosophical, theological, and spiritual explanations. Philosophical theories about the meaning of life are at Meaning of life (philosophy).