Freud Link and Reflection

This is a link to a site that has all kinds of information about dream theory and how we sleep. There's a good overview of Freud's theory as well.

http://www.dreammoods.com/dreaminformation/dreamtheory/freud.htm

What interests me most about Freud are his dream theories. Freud believed that our dreams reflected our unconscious urges and impulses (the id). In everyday we life we have to suppress the id, but when we sleep it is free to express itself. However, our mind still protects us when we sleep from scary thoughts and impulses by coding frightening dreams into confusing symbols or stories. Personally, I've had many dreams where I've woken up thinking "what did that mean?" So, based on my experiences it would seem like Freud's theory is perfectly logical and must be true.
I wish it were this easy, but it's not. In Physiological Psychology we learned that many scientists believe that dreams are merely random images and ideas streaming through our cortex while we sleep. Everyday we have new information that goes to our brain, and activity does not stop while we sleep. This also makes sense to me.
This leaves me, like many people, completely confused about what dreams are and what do they mean. I could counter Freud's theory by pointing out that dogs have dreams, so do they have a suppressed id like humans? I don't think dreaming is exclusive to humans, so this point may support the scientists theory. But, in response to the scientists I could ask if my dreams are just random thought processes in my cortex, then why do they have ongoing plots sometimes that make perfect sense like a film?? This point seems to support Freud's theory. So I'm back to where I began- confused about dreams and really wanting to actually know the mechanism and meaning. Hopefully in our generation it will be figured out, but I highly doubt it. Have a good break!