In Greek mythology, Ananke (Greek Ἀνάγκη) was the personification of destiny, unalterable necessity and fate. She was also the mother of Adrasteia and of the Moirae. She was rarely worshipped until the creation of the Orphic mystery religion. In Roman mythology, she was called Necessitas ("necessity"). Greek mythology consists of an extensive collection of narratives detailing the lives and adventures of a wide variety of gods, goddesses, heroes, and heroines, which were first envisioned and disseminated in an oral-poetic tradition. ... In Greek mythology, Adrasteia (inescapable; also spelled Adrastia, Adrastea, Adrestea) was a nymph who was charged by Rhea to raise Zeus in secret to protect him from his father Cronus (Krónos). ... In Greek mythology, the white-robed Moirae or Moerae (Greek Μοίραι — the Apportioners, often called the Fates) were the personifications of destiny (Roman equivalent: Parcae, sparing ones, or Fatae; also equivalent to the Germanic Norns). ... A mystery religion is any religion with an arcanum, or body of secret wisdom. ... Roman mythology, the mythological beliefs of the people of Ancient Rome, can be considered as having two parts. ...