One day there was a poor lady who only have 20 dollars left in her pocket. She has no work. She decided to go to the church and pray to God. She prayed for the souls who are still at the Purgatory. She gave all her money as her offering to the church.
Now that there was no money left with her, she decided to have a walk going back home when someone suddenly approached her and asked, "Do you need a job? Just go to this address and you'll have the job you needed.". The man is a stranger with a very handsome face.
Since the poor lady really needed to find a job, she went to the address that the man gave her. As she knocked at the gate, an old lady opened it for her. The poor lady said at once, "Do you need a help?".
"Why yes. How did you know? I'm not even advertising it.", the old lady's reply.
"A man approached me and said that someone here might need a help, so I came here with no doubt.", was her only respond.
The old lady asked the poor lady to enter her house. The poor lady suddenly stopped as she saw a portrait of the man she saw earlier.
"This is the man who talked to me after I went to the church.", said the poor lady
"That's impossible. My son is already dead 10 years ago. Anyway, I'll hire you to be my helper around this house.", replied by the old lady.
See the lesson? Mrs. L said that every time we'll pray for someone's soul at the purgatory, doesn't matter if we knew them or not, can bring them to heaven and help us in return.