The surface area of housing is not the only one identified with the habitat. [...] My real habitat embraces wider, it integrates the stairwell and the elevator, the entrance hall, [...] the neighbouring streets, the school, the bakery, the public garden ... My habitat is expandable according to my moods, my relations, [...] just as it can shrink, if I fold in on myself, [...] lock myself in my apartment like an oyster in its shell.