When I first began to draw, I thought it consisted of something called “eye-hand coordination.” And I suppose it does. But as I have spent many years now exploring drawing in all kinds of forms and studying the drawings of master draughtsmen, I realize that drawing is really an expression of ideas. At its essence it is all idea — almost pure idea.
If you can imagine something you can draw it. Of course, everything depends upon the character of that imagining. A rich pictorial imagination is involved in imagining things even as you are looking at them. Imagination is a crucial component of seeing.
With the advent of the computer, drawing is something that you can make with a different tool than a pencil — or the other older tools usually associated with drawing.
But the idea is still the active thing. In this case the lines were enclosing things: a house, some trees, a dog. A world composed entirely of lines.