36. Young people should also be helped to become aware of any psychological andor emotional shortcomings they may have, especially the inability to open up to others, and any forms of selfishness that can take away from the total commitment of their self-giving. This help will also aid in discovering the potential and the need for human and Christian growth in their life. For this purpose, the persons in charge of marriage preparation should also be concerned with giving solid formation to the moral conscience of the engaged so that they will be prepared for the free and definitive choice of marriage which is expressed in the mutually exchanged consent before the Church in the marriage covenant.