A book at the very start comes to me as a nebulous geometric form, a kind of tension in space that has to be resolved. The resolution is effected by fleshing out the form with character, plot, dialogue, etc. But the original structure perseveres throughout, even when, or perhaps especially when, I am not conscious of it being at work. Art is a mysterious business.

Fully Booked: Q & A with John Banville (2012)