All who die in God s grace and friendship, but still imperfectly purified, are indeed assured of their eternal salvation, but after death they undergo purification, so as to achieve the holiness necessary to enter the joy of heaven.
Purgatory is a man made doctrine.
The rich man that died and went to hell in Luke 16, prayed to Father Abraham, but Abraham told him that his fate was sealed. It could not be changed. CAN THEY PASS TO US, that would come from thence. You cannot change what God has done. It cannot be changed.