Ectoplasm, in the context of the paranormal, is described as a mysterious, often luminous, substance thought to exude from the body of a medium during a séance or from ghosts themselves. It's often depicted as a milky white, viscous material, though sometimes appearing as a vapor or even a black, viscous liquid. In some accounts, it's described as having an ozone-like smell. Here's a more detailed breakdown: Ectoplasm is said to emanate from the body of a medium, often through orifices like the mouth or ears, during a trance state. Ghosts: In some accounts, ectoplasm is described as a substance that ghosts can use to manifest in the physical world or to interact with objects. Materialization: Ectoplasm is believed to be the substance that allows spirits to materialize and interact with the physical world. Levitation: Some believe ectoplasm can be used to lift objects, like trumpets or even people, during séances. Skepticism: Many instances of ectoplasm have been debunked as hoaxes, involving mediums using materials like tissue paper and magazine cutouts to simulate the substance. Skepticism surrounding ectoplasm has contributed to a decline in the popularity of physical mediumship.