Elysium

Latin form of Greek Ἠλύσιον (πεδίον) (Elysion (pedion)) "the Elysian fields", which is of unknown origin, perhaps from pre-Greek. According to Greek - and later Roman - mythology, Elysium was a blessed and happy Afterlife where only the souls of mortals related to the gods and other heroes could be admitted. This concept was originally separated from the Greek underworld and realm of Hades.