👉 In the context of mythology and folklore, a "chthonian" is an entity that is not visible or perceivable to the naked eye. It can refer to various things depending on the context:
1.
Cynogony
: In Greek mythology, a chthonic being is one who cannot be seen or touched by mortals due to their immortality and absence of senses.
2.
Eos
: The Greek goddess of death, often associated with the underworld. Eos was