The deliberate, usually temporary, visible and/or physical formation of a spirit.

This is one of the most remarkable ways in which spirit are able to prove their existence. With the use of ectoplasm, whish is a living substance & is mainly taken from the body of the medium by spirit. Usually the medium enters a state of deep trance & slowly the ectoplasm begins to flow from the body & take form. The figure produced is constantly linked to the medium by a channel of nourishment, like that of an umbilical chord. The ectoplasmic figure is not consistent with normal physiology but is subject to change under the direction & control of mind. A discarnate spirit may not only materialise its face & form, but also have been known to produce in rapid succession facsimiles of his/her personal appearance at several different periods of earth life, from childhood to that of old age.

an appearance in bodily form (as of a disembodied spirit)

something that comes into existence as a result; "industrialism prepared the way for acceptance of the French Revolution's various socialistic offspring"; "this skyscraper is the solid materialization of his efforts"

The formation of a seemingly solid, or semisolid, figure of a dead person usually associated with spiritual mediumship.

the process of coming into being; becoming reality; "the materialization of her dream"