Millennium Revelation: In Rev 20, the Bible teaches that there is a millennium. Millennium means 1000 years. But, what is this millennium? And, why is Satan bound during this time period. A correct understanding of this 1000 years is crucial to correctly understand Bible prophecy. Also, it is important to understand that the 1000 years is a symbolic representation of the church age. Please click on the You Tube video link below for more information. Or, please view the Millennium study page on this website.