mysticism
noun
mys·ti·cism ˈmi-stə-ˌsi-zəm 
1
: the experience of mystical union or direct communion with ultimate reality reported by mystics
2
: the belief that direct knowledge of God, spiritual truth, or ultimate reality can be attained through subjective experience (such as intuition or insight)
3
a
: vague speculation : a belief without sound basis
b
: a theory postulating the possibility of direct and intuitive acquisition of ineffable knowledge or power
Example Sentences
Jewish, Christian, and Islamic mysticism. a student of Eastern mysticism
Recent Examples on the Web So have Sufis, who practice a form of Islamic mysticism or asceticism. 
Claire Parker, Washington Post, 18 Aug. 2022 The Bell and Raven is a peaceful little shop in Simsbury specializing in paganism, mysticism, ancient magical practices, divination and other esoteric traditions. Susan Dunne, Hartford Courant, 12 Aug. 2022 Ocean waves mingle with the skyline, evoking mysticism. Natasha Gural, Forbes, 16 Aug. 2022 There’s a bit of mysticism attached to the concept, as though the visual information has been beamed in from some spiritual, unknown place and so is in some way more honest. New York Times, 7 July 2022 The scholars also produced millions of pages of jurisprudence, and writings on the Prophet Muhammad, and on mysticism. New York Times, 12 July 2022 Throughout the music is an undercurrent of spirituality and mysticism that Brian says is very much a part of the creative process. Shirley Macfarland, cleveland, 8 July 2022 There is a lot of dark fantasy and some mysticism happening. Angie Martoccio, Rolling Stone, 1 June 2022 Alfred Hitchcock tops his own fabulous record for suspense with Vertigo, a super-tale of murder, madness and mysticism that stars James Stewart and Kim Novak. Jack Moffitt, The Hollywood Reporter, 13 May 2022 See More
Claire Parker, Washington Post, 18 Aug. 2022 The Bell and Raven is a peaceful little shop in Simsbury specializing in paganism, mysticism, ancient magical practices, divination and other esoteric traditions. Susan Dunne, Hartford Courant, 12 Aug. 2022 Ocean waves mingle with the skyline, evoking mysticism. Natasha Gural, Forbes, 16 Aug. 2022 There’s a bit of mysticism attached to the concept, as though the visual information has been beamed in from some spiritual, unknown place and so is in some way more honest. New York Times, 7 July 2022 The scholars also produced millions of pages of jurisprudence, and writings on the Prophet Muhammad, and on mysticism. New York Times, 12 July 2022 Throughout the music is an undercurrent of spirituality and mysticism that Brian says is very much a part of the creative process. Shirley Macfarland, cleveland, 8 July 2022 There is a lot of dark fantasy and some mysticism happening. Angie Martoccio, Rolling Stone, 1 June 2022 Alfred Hitchcock tops his own fabulous record for suspense with Vertigo, a super-tale of murder, madness and mysticism that stars James Stewart and Kim Novak. Jack Moffitt, The Hollywood Reporter, 13 May 2022 See More Word History
Etymology
mystic entry 1 + -ism
First Known Use
1724, in the meaning defined at sense 2