The Castalia or
Castalian Spring was the name of a spring near
Delphi, sacred to the
Muses, mentioned by many authors. According to old traditions, the Castalian Spring already existed by the time
Apollo came to Delphi searching for Python. According to some, the water was a gift to Castalia from the river
Cephisus. In his commentary on
Statius's
Thebaid, Latin poet
Lactantius Placidus says that the virgin Castalia, trying to escape Apollo's unwanted amorous advances, threw herself into a fountain at Delphi, at the base of
Mount Parnassus, or at
Mount Helicon, which took her name thereafter. Castalia then became the sacred fountain of Poseidon. == In culture ==