The "millennial kingdom" refers to a future period of peace and prosperity on Earth, often associated with the second coming of Jesus Christ in Christian eschatology. This concept is primarily derived from the Book of Revelation in the Bible, which describes a thousand-year reign of Christ alongside His followers. During this time, it is believed that there will be a restoration of harmony, where righteousness prevails, and the faithful will experience a direct relationship with God. Different interpretations exist among various Christian denominations, with some viewing it as a literal event and others as a symbolic representation of spiritual fulfillment.