THESAURUS
occultism
bodilessness, ghostliness, immateriality, immaterialness, impalpability, imponderability, incorporeality, incorporeity, inextension, intangibility, nonexteriority, occult phenomena, otherworldliness, psychical research, psychicism, psychics, psychism, shadowiness, spirit world, spirituality, spirituousness, supernaturalism, the occult, unearthliness, unsubstantiality, unsubstantialness, unworldliness