He should from time to time pass in analytic review the important events, the experiences, and the attitudes of his past. It is not the good but the evil emotions and deeds, their origins and consequences, that he should particularly attend to, mentally picture, and examine from the perspective of his higher self. But unless this is done with perfect honesty in an impersonal unconcerned detached and self-critical spirit, unless it is approached with a self-imposed austerity of emotion, it will not yield the desired results. It is not enough to mourn over his errors. He should carefully learn whatever lessons they teach.
-- Notebooks Category 4: Elementary Meditation > Chapter 4: Meditative Thinking > # 109