Commentary on Meditations: B3:8

In the mind of one who is chastened and cleansed you will find no suppuration, no simmering ulcer, no sore festering under the skin. Fate does not catch him with his life unfulfilled, as one might speak of an actor leaving the stage before his part is finished and the play is over. Moreover you will find nothing servile or pretentious, no dependence or alienation, nothing to answer for, no lurking fault.

In a word, Marcus says the examined life is a life without guilt; a life with a clear and clean conscience.

We ought to examine our life and we ought to be mindful. And as we examine our life and practice constant, mindful vigilance, we will be quick to clean any wounds or ulcers.

Years ago, I heard that this constant practice of being mindful and keeping a clean conscience is like brushing your teeth. You ought to do frequently and regularly. You cannot simply say you'll brush once a week and be alright - it just doesn't work that way.

Practice the examined life (which is exercising the discipline of assent) and be mindful.