Dream Catcher's filter out your dreams. You hang them at the head of you bed so that when you sleep at night you only have good dreams. Bad dreams would get caught in the net, disappearing with the light of day. Good dreams would pass through and slide down the feathers to the dreamer.
The cross symbolizes the cardinal directions and the sacred fire, and the circle symbolizes the sun.
The Falcon is a solar creature. Having one in your life means there is something you are highly passionate about, or that you are a very passionate person. The Falcon helps guide you to take action on this passion.