Mechthild of Magdeburg

That prayer has great power which a person makes with all his might. It makes a sour heart sweet, a sad heart merry, a poor heart rich, a foolish heart wise, a timid heart brave , a sick heart well, a blind heart full of sight , a cold heart ardent. It draws down the great God into the little heart, it drives the hungry soul up into the fullness of God , It brings together two lovers, God and the soul in a wondrous place where they speak much of love.