👉 Synusia is a term in Greek mythology used to describe a person who becomes immortal through a combination of divine intervention and human efforts. In this context, it refers to someone who has been granted immortality by the gods but chooses not to accept it, instead choosing to live forever as a god-like being. This concept is often associated with the story of Demeter in Greek mythology, where she was the goddess of agriculture and fertility, and her daughter Persephone was given the gift of imm