being aware of your dreams can be useful thing. if only for the fact that it can make you mor aware of where your thoughts are during the day time, or to become more ware that al the things you see on a day does effect your mind set. 

some write down there dreams in a dream journal and I have done that for a time. but I find it a little bit to time consuming. but it’s defiantly the better way to go. and it can also be a good training tool to build up the skill set to make your self more aware of your dreams when you wake up. so you can find the possible meaning behind them.