A couple of despondent disciples were walking between towns on the Sunday after Jesus was crucified. Jesus joined them, although they were prevented from recognising Him. When they reached their destination Jesus acted like He was going further but they urged Him to stay. Did Jesus really want to leave them or was He waiting for them to ask Him in?
He came from Heaven on the initiative of the Father but now He politely waits for our invitation. Revelation 3:20 explains this as a door that we need to open to let Him in. Call to Him and He will respond, open the door of your heart and He will enter, urge Him to stay. He promises to come in to us, to live with us, and to never leave us.