spiritism

This term describes a specific metaphysical belief system centered on the interaction between the physical world and the afterlife. It carries a mystical and often occult connotation, distinguishing it from general spirituality by its focus on the active, intentional communication with deceased entities via intermediaries.

As an abstract concept representing a belief system or a philosophy, this noun is uncountable. It does not have a plural form and cannot be counted as individual units; instead, it is treated as a mass noun, requiring phrases like a practitioner of spiritism to refer to individuals involved in the practice.