Anyone who has ever painted or drawn knows the experience of dropping out of the world of words and time. A state of reverie takes over; there is no sensation of the passing of hours. The voice inside our head that allows us to talk to ourselves falls silent, and there is only color, form, texture and the way things flow together.

There is a theory to explain this. Language is centered on the left side of the brain. Art lives on the right side. You can’t draw a thing as long as you’re thinking about it in words. That’s why artists are inarticulate about their work, and why it is naive to ask them, “What were you thinking about when you did this?” They have given it less thought than you have.