Two thousand years ago, the Lord Jesus promised, "I go to prepare a place for you. And if I go and prepare a place for you, I will come again, and receive you to myself; that where I am, there you may be also" (John 14:2-3). Many people believe that the Lord returned to heaven, so He is certainly preparing a place for us in heaven. Is this understanding in line with the Lord's words? What mysteries are contained within this promise?