Preach or Testify

I learned something very interesting this week. Something I know, but what a reminder it was.
During church, we had a speaker who talked for 45 minutes. Yes, there was merit to the talk, but it was one of those talks that was really difficult to focus on and hang in there with.
After a quick rest hymn, his companion spoke. The companion spoke for only three minutes. He told the story of his conversion. His cousin had given him a copy of the Book of Mormon. He began to read it and a few months later - prayed and KNEW - absolutely knew that the Book of Mormon was true, and that the church was true. The spirit was so strong. It touched everyone's hearts. It was so short, simple and true, but there was such a night and day contrast to the spirit which was felt.
When we testify, the spirit carries it into the hearts. When we preach - it sure ends up being hard to hang in there.