Roman Catechism 42.5

Chapter 42 — Part IV: Prayer — Amen

Section 5. For since, as St. Cyprian remarks, by prayer man converses with God, it happens in a wonderful manner that the divine Majesty is brought nearer to those who are engaged in prayer than to others, and enriches them with singular gifts. Those, therefore, who pray devoutly, may not be inaptly compared to persons who approach a glowing fire; if cold, they derive warmth; if warm, they derive heat. Thus, also, those who approach God (in prayer) depart with a warmth proportioned to their faith and fervour; the heart is inflamed with zeal for the glory of God, the mind is illumined after an admirable manner, and they are enriched exceedingly with divine gifts, as it is written: Thou hast prevented him with blessings of sweetness.