materialization

In occultism, materialization refers to the purported phenomenon where a spirit or a part of a human body takes shape from a substance called ectoplasm, which is said to exude from a medium's body during a séance. This substance then disappears, returning to its source.1

Spiritualism, a movement that emerged in the 19th century, is based on the belief that departed souls can interact with the living, often through a medium. Mediums are believed to have the ability to contact spirits, sometimes in a trance state. These spirits may announce their presence through paranormal physical phenomena, including the materialization or movement of objects. While some mediums have been exposed for fraud, the concept of materialization remains a part of occult beliefs.23