"Delving deeper into character's motivations one thing I always find helpful is to imagine the person as a child, imagine them at a very early stage, prior to having all of the things taken away from them, or all of the habits put onto them that they end up having, and then going from there."
Source : "Essential Ohsawa: From Food to Health, Happiness to Freedom - Understanding the Basics of Macrobiotics". Book edited by Carl Ferré and Herman Aihara, p. 82, 1994.