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.
attributed to Mechthild of Magheburg (a Catholic mystic from the 1200’s)