Orphism is the name given to a set of religious beliefs and practices originating in the ancient Greek and Hellenistic world, associated with literature ascribed to mythical poet Orpheus, who descended into the Greek underworld and returned. The central focus of Orphism is the suffering and death of the god Dionysus at the hands of the Titans, which forms the basis of Orphism's central myth.

Metempsychosis (μετεμψύχωσις), in philosophy, refers to transmigration of the soul, especially its reincarnation after death. It is unclear how the doctrine of Metempsychosis arose in Greece. It is easiest to assume that earlier ideas which had never been extinguished were utilized for religious and philosophic purposes. Orpheus have taught that the Soul is divine, immortal and aspires to freedom, while the Body holds it

The Demiurge is an artisan-like figure responsible for fashioning and maintaining the physical universe, according to Platonic, Neo-Pythagorean, Middle Platonic, and Neo-Platonic schools of philosophy. The Gnostics adopted the term Demiurge. The Demiurge itself and the material from which the Demiurge fashions the Universe are both considered consequences of something else. The word Demiurge is an English word derived from Demiurgus, a Latinised from δημιουργός.

Orpheus (Ὀρφεύς), is a legendary musician and prophet in ancient Greek religion. He was also a renowned poet and, according to the legend, travelled with Jason and the Argonauts in search of the Golden Fleece, and even descended into the Underworld of Hades to recover his lost wife Eurydice. Orpheus is one of the most significant figures in the classical mythology in Western culture