Pope Benedict gave a beautiful address on St. Catherine of Genoa and her revelations on purgatory in 2011. For the complete text visit: http://w2.vatican.va/content/benedict-xvi/en/audiences/2011/documents/hf_ben-xvi_aud_20110112.html
Below are excerpts from Pope Benedict’s talk:
The Saint [St. Catherine of Genoa] speaks of the Soul’s journey of purification on the way to full communion with God, starting from her own experience of profound sorrow for the sins committed, in comparison with God’s infinite love (cf. Vita Mirabile, 171v).
“The soul”, Catherine says, “presents itself to God still bound to the desires and suffering that derive from sin and this makes it impossible for it to enjoy the beatific vision of God”. Catherine asserts that God is so pure and holy that a soul stained by sin cannot be in the presence of the divine majesty (cf. Vita Mirabile, 177r).
We too feel how distant we are, how full we are of so many things that we cannot see God. The soul is aware of the immense love and perfect justice of God and consequently suffers for having failed to respond in a correct and perfect way to this love; and love for God itself becomes a flame, love itself cleanses it from the residue of sin.
In Catherine we can make out the presence of theological and mystical sources on which it was normal to draw in her time. In particular, we find an image typical of Dionysius the Areopagite: the thread of gold that links the human heart to God himself. When God purified man, he bound him with the finest golden thread, that is, his love, and draws him toward himself with such strong affection that man is as it were “overcome and won over and completely beside himself”.
Thus man’s heart is pervaded by God’s love that becomes the one guide, the one driving force of his life (cf. Vita Mirabile, 246rv). This situation of being uplifted towards God and of surrender to his will, expressed in the image of the thread, is used by Catherine to express the action of divine light on the souls in purgatory, a light that purifies and raises them to the splendour of the shining radiance of God (cf. Vita Mirabile, 179r).
With her life St Catherine teaches us that the more we love God and enter into intimacy with him in prayer the more he makes himself known to us, setting our hearts on fire with his love.
In writing about purgatory, the Saint reminds us of a fundamental truth of faith that becomes for us an invitation to pray for the deceased so that they may attain the beatific vision of God in the Communion of Saints (cf. Catechism of the Catholic Church, n. 1032).
-Pope Benedict XVI