In mental prayer, the soul is purified from its sins, nourished with charity, confirmed in faith, and strengthened in hope; the mind expands, the affectiond dilate, the heart is purified, truth becomes evident; temptation is conquered, sadness dispelled; the senses are renovated; the drooping powers revive; tepidity ceases; the rust of vices disappears. Out of mental prayer issue forth, like living sparks, thode desires of heaven which the soul conceives when inflamed with the fire of divine love. Sublime is the excellence of mental prayer, great are its privileges; to mental prayer heaven is opened; to mental prayer heavenly secrets are manifested and the ear of God is ever attentive.
–Saint Peter of Alcantara (1499-1562)