Lennon-style Evangelism

You say I'm a dreamer,
I'm not the only one,
Maybe some day you'll join us,
And the world will live as one.

These lyrics strike me as a great model for evangelism. After all, regardless of what you think of John Lennon's gospel, this song, "Imagine," is trying to convert people.

I like it because it's more suggestive than demanding, more thought-provoking than preachy. It also points to how the world could be better if "you'll join us" rather than threatening people with what will happen should they fail to join.