While out knocking on doors for the Lord one day many years ago, I came across a couple who as soon as I was in their presence I felt the Holy Spirit. I felt foolish asking them if they were saved, because I just KNEW they were since the power of the Holy Spirit was SO strong.
The man assured me that he and his wife knew the Lord, but that was no surprise. They were the happiest couple I have ever come across. The reason for it was that he put his wife's happiness ahead of his own; she put his happiness ahead of her own, and they both put Jesus Christ ahead of themselves.