A lot of people probably won't believe this, but your dreams have a lot to do with your life while you're awake. The subconscious mind has a lot of answers to the things that your conscious mind, is too busy to figure out. For example...all your life you've been steered towards the engineering field, but your grades reflect differently, as well as your heart. A dream dictionary can help you realize that you abhor engineering. If you've been dreaming about railroad tracks, that means your subconscious is trying to tell you your life is off track. Dream interpretations are useful.