noun
Refers to a thousand-year period, often in a religious or utopian context such as the Christian millennium.
至福千年説はキリスト教の終末論の一部です。
The millennium doctrine is part of Christian eschatology.
Compound of 至福 (shifuku, 'supreme bliss') and 千年 (sennen, 'thousand years'). The exact origin is uncertain, but it likely arose as a translation of the Christian concept of the millennium.