For a moment, think about a door. It can be locked up, or open wide… welcoming you in. A door can bar you entrance, or allow you in. Finally, it can give you means for access and/or participation, or forbid you from going any farther. Jesus speaks of the door to our hearts when He says, “Here I am! I stand at the door and knock. If anyone hears My voice and opens the door…” (Revelation 3:20) If we open that door and welcome Him in, it opens up countless doors to His many blessings…but the biggest one being what John experienced here in Revelation 4:1…seeing the door to heaven standing wide open, bidding him to come in.