小人物。什么都不是，只是一个很普通的普通人。 Somebody >>> 大人物。

It looks like a song lyric or a poem. I wouldn't try to understand it, it's very vague. The direct meaning is that there are two people who don't exist, but this was written to be confusing or to make people think strangely, but these types of phrases wont help you in any way.