We'll speak about the architectural imagination.

And I'm going to suggest that some concept like the imagination

is necessary if we want to treat architecture as a mode of knowledge.

The classical philosophers said, the soul

never thinks without phantasm, which is to say that thought needs a material

image, something to carry the thought.

So we begin to think of the imagination as bridging the gap between perception

and understanding.

source: HarvardX GSD1xThe Architectural Imagination