“I do not think that apart from the felicity of Heaven, there can be a joy comparable to that experienced by the Souls in Purgatory. An incessant communication from God renders their joy more vivid from day to day: and this communication becomes more and more intimate, to the extent that it consumes the obstacles still existing in the soul. On the other hand, they endure pain so intense, that no tongue is able to describe it. Nor is any mind capable of comprehending the smallest spark of that consuming fire, unless God should show it to him by a special grace.”
– St. Catherine of Siena