Architecture appears for the first time when the sunlight hits a wall. The sunlight did not know what it was before it hit a wall.
Greek architecture taught me that the column is where the light is not, and the space between is where the light is. It is a matter of no-light, light, no-light, light. A column and a column brings light between them. To make a column which grows out of the wall and which makes its own rhythm of no-light, light, no-light, light: that is the marvel of the artist.
Consider the momentous event in architecture when the wall parted and the column became.