"How can I describe what happens after the agony? It is impossible really to understand it unless one has passed through it. When the soul leaves the body it is as if it were lost in or, if I may say so, surrounded by God. It finds itself in such a bewildering light that in the twinkling of an eye it sees its whole life spread out, and at this sight, it sees what it deserves, and this same light pronounces its sentence. The soul does not see God but is annihilated in His presence. If the soul is guilty as I was and, therefore, deserves to go to Purgatory, it is so crushed by the weight of the faults that still remain to be blotted out, that it hurls itself into Purgatory. It is only then that one understands God and His love for souls and what a terrible evil sin is in the eyes of the Divine Majesty. St. Michael is present when the soul leaves the body. I saw him only, and he is the only one that every soul sees. (Later) I also saw my Guardian Angel. From this you can understand why it is said, "St. Michael conducts souls to Purgatory", for a soul is not taken, but he is there at the carrying out of each sentence. All that happens in this other world is a mystery for yours."
~ Sr. M. G., a deceased nun: From An Unpublished Manuscript on Purgatory ~