Of Other Spaces: Utopias and Heterotopias. My Private Space

 Sixth principle. The last trait of heterotopias is that they have a function in
relation to all the space that remains
. This function unfolds between two extreme
poles. Either their role is to create a space of illusion that exposes every real
space, all the sites inside of which human life is partitioned, as still more illusory

Of Other Spaces: Utopias and Heterotopias
Michel Foucault