For me, it was when Michael said that at the end, his father recognized him only as the guy who hugged him, and began to spread his arms at the sight of him. I shut my eyes tightly, and the tears kept welling up.
My stepfather was a wonderful man who treated me like a son from day one. After he retired, he moved to Oregon, while I ended up in Texas. Before he succumbed to emphysema, I had the chance for one last visit, to tell him that I loved him.
When my fiance picked me up at the airport that evening, she was extremely subdued. While driving home, she told me that my dad went into a coma five minutes after I left, and died that afternoon.
Michael's beautiful words brought those memories back. Not the sad ones, mind you, but the good times we spent with each other, and the love (albeit mostly unspoken) that we had for each other.
The rest of the story: I heard Mike earlier say he went to his car and his wife told him he forgot something. He looked up and Pres. Reagan had his arms open, He forgot to hug him goodbye. That got me big time.