Spiritualism

The quality or state of being spiritual.

The doctrine, in opposition to the materialists, that all which exists is spirit, or soul -- that what is called the external world is either a succession of notions impressed on the mind by the Deity, as maintained by Berkeley, or else the mere educt of the mind itself, as taught by Fichte.

A belief that departed spirits hold intercourse with mortals by means of physical phenomena, as by rappng, or during abnormal mental states, as in trances, or the like, commonly manifested through a person of special susceptibility, called a medium; spiritism; the doctrines and practices of spiritualists.

the belief that the spirits of dead people can communicate with people who are still alive (especially via a medium)

(theology) any doctrine that asserts the separate existence of God

concern with things of the spirit