Burne-Jones is here meditating once again on enclosure, equating it with safety and the world outside being full of perils. The Latin inscription is a quotation from St John Chapter 10 verse 1, this passage also refers to doors as an allegory and thus relates this drawing to the drawing on p 373 & 374, since in verse 9 Christ identifies himself as a door "I am the door: by me if any man enter in, he shall be saved, an shall go in and out, and find pasture." Possibly a rejected idea for a frieze at the bottom of the mosaics in the American Church in Rome, St Paul's Within the Walls.