One of the founders of the Pre-Raphaelite movement, or Brotherhood as they liked to call themselves. Was heavily influenced by the writings of John Ruskin, the influential art critic, and Thomas Carlyle, the historian.
Behold, I stand at the door and knock; if any man hear My voice, and open the door, I will come in to him, and will sup with him, and he with Me.
This illustrates that we must allow God to come into our hearts.