society produces a huge pile of things. most of it is developed for very specific use. seeing it being used teaches us to see and act in a way that is implicit in these things.
how can we approach some thing without letting preconceptions and conventions determine our thoughts? our actions? if a window can be a door and a bush can be a house - what does that do to the view of a world of stable things?

stability as a matter of thought: the most flexible tent can be more stable than a house of concrete. even in a packed state it still is a tent for those living in- and transporting it. it is reassuring.
a house which is not transportable cannot give that security when you move. it leaves you and makes sensible of that distance. a big solid building takes up space (in a geographical sense) and or blocks that space in the mind.
ideas are like tents. you can transport them easily. you can unpack and modify them. they change with the surrounding. they change a little everytime you set them up.
the house is a definite answer. a tent is a permanent suggestion.