"Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. In an older and closely related meaning, "science" also refers to a body of knowledge itself, of the type that can be rationally explained and reliably applied." - Wikipedia
The study and expansion of consciousness is a science that traditionally has been called religion, philosophy, psychology, mysticism, magic, etc. Nevertheless, it is "a systematic enterprise that builds and organizes knowledge in the form of testable explanations." In other words, it is Gnostic, "something that is known only through experience."