In dream talk, we all have different aspects of our personality - the hero, the villain )also called the shadow self), the beast, etc,etc,etc. When you put them all together, you get the True (or Whole, or Complete) Self. The goal of interaction in dreams is to integrate all the different characters into the True Self. Life keeps us from ever getting ALL of the characters fully integrated. It's like laundry in that way

It very well could be that there's something you're not being true to yourself with. That you brought that idea to the table says to me that that's what the image really means. Since you can see the UFO, I'm willing to bet you know where it is that you're being false. Go fix it! :P