Astral Diner: A plane between planes, in which all kinds of ascended, non-physical, conceptual and other forms of higher beings can all meet. It used to have waiters, but after establishing contact with the material sister establishment of Milliways, we were informed that this is gauche, so now the diner itself serves that role.
Non-violance rules apply. The Diner does not guarantee mutual accessibility between planes of origin of various entities. Breaching metanarrative barrier counts as being a higher entity for the purpose of visiting the Diner.
There's a world-eating bug in the backyard getting food and bellyrubs, visitors are encouraged not to disturb him.