 Mystical experiences, both introvertive and extrovertive, are alleged to be “noetic,” i.e., giving knowledge of what a subject apprehends (see James 1958). As Chris Letheby puts it: “Noetic quality refers to a strong sense of gaining a genuine and unmediated insight, or of encountering ultimate reality; the mystical experience, by definition, is felt to be ‘more real than real’” (Letheby 2021, 25). To what extent this knowledge could come from the experiences alone will be discussed in Section 9.