It is, in short, a jewel case in which have been collected all the valid teachings in such a way that individuals find remedies just right for their cases. It heals the old wounds of the soul and gives relief to recent ones. It cures the illnesses and preserves the health of the soul. Every Psalm brings peace, soothes the internal conflicts, calms the rough waves of evil thoughts, dissolves anger, corrects and moderates profligacy. Every Psalm preserves friendship and reconciles those who are separated.
Every Psalm anticipates the anguish of the night and gives rest after the efforts of the day.
Every Psalm is the voice of the Church.