I have been looking for my DG in my past few lucids but there was always something stopping me. Everytime I call for my DG a weird black door appears. Unfortunatly each time I try to open it, I get distracted and the door disappears or the door is locked. In one lucid, I had a key so I tried to open the door but the key broke and the door disappeared. What does this mean? Has this ever happened to anyone before?