...[I]t is much more profitable to fix the attention on deliberate faults [sins] first, then on those which are semi-deliberate - even if they are only simple imperfections - telling not only the faults themselves but also the motives behind them.
I wish somebody had told me this fifty years ago. "Know thyself", an ancient Greek aphorism often ascribed to Socrates, is possible by admitting our motives honestly in all that we do. The better we know ourselves, the more we see how much we need God and the better able we are to humbly submit to His purification on the path to sainthood.
Although this method is not required for the validity of the confession, it is certain that the soul will draw much profit from it since the accusation will have exposed the root of the evil. The soul will benefit too by its act of humility, which will be a stimulus to deeper repentance and will arouse in it a more ardent desire to amend its life, for this is the logical result of considering the motives - usually not noble ones! - from which our faults arise.
Furthermore, an accusation of this kind helps the confessor to have a better knowledge of the penitent's weak points, and to suggest the most suitable remedies, a matter of special importance when direction is given with confession.