There is so much dreaming involved in the act of inhabiting, and businesses like Ikea are built on and cater to the innate yearning in each of us to inhabit our own castle. But writers, too, over time have been tuned to this universal human need. In The Poetics of Space, Gaston Bachelard quotes the poet Vincent Monteiro: Who has not deep in his heart / A dark castle of Elsinore.