Have you ever been introduced to a total stranger that you used to believe that you knew better than anyone?

I had a friend like that. We've lost touch but it felt that way with him. He was there for me when i needed someone most. The son that i lost, they shared a birthday. He saw my oldest daughter in his dreams and it happened exactly like he said it would. I had given up on having children and i was crying on his shoulder one day , he said i had a dream that you were coming out of a store with a little girl, he described her and he said he was walking in. And that my daughter held the door for him. We lost touch for years. Then when my daughter was 3 low and behold i was holding her hand had the door in the other, she let go of my hand went to push the door, and he walked in.