I think prayers are helpful even if the person you pray for isn't saved. Your prayers could help make his eternity in hell a little less bad.
This is a heresy. Once someone goes to hell they are beyond all help.
I'm sure he meant praying for someone you didn't know went to Hell, not consciously praying for a damned person.
Well he was very clear "could help make his eternity in hell a little less bad".
It is good to provide Catholic pieces of doctrine to other posters so they dont go astray.
What i understood was that because you prayed for someone whom you didn't know went to Hell anyways, maybe God at least made it less severe for the person at his judgment because of your prayers, not that your prayers would still be making Hell less worse for the person even after being sent there.
But is he / she not judged the moment they die?
What good would praying for them after they die be to them, for they already burn?
I ask to seek knowledge, but what I understand of this is of the mind of the church.