Dream: What is life if you don't have dreams? Can you still enjoy it? I think you need to dream to have something to live for, that you need to dream to be able to enjoy things. To feel happy. If you don't have dreams, it's just counting the days till you're old and can't do everything that easily. It's good to have dreams in your life, even when they seem impossible to come true. Do you have dreams? Write them down, work on it!
Dare: Sometimes, when a dream might come true, you need to sacrifice some things in life. Sometimes even bigger things. What are you willing to do to make your dreams come true? Would you dare to risk a job, friendships, your house or even a relationship to make your dream come true? I would say: go for it if you dare :) For the bigger dreams it should even be worth the fighting to make it come true. That when you're old and look back to what you did with your life you can say you've fought to make your dreams come true. And what about taking a risk to lose something or someone? Well, it's the risk, it doesn't mean you lose the things you risk.
Do: Well, if you have the dreams, if you dare to do them, just do it! There are enough people who have dreams and who dare to take the risk (or some people who have nothing to lose) and still don't take the step to make their dreams come true. Have dreams, dare to chase them and make them come true!
"Aye, fight and you may die. Run, and you'll live... at least a while. And dying in your beds, many years from now, would you be willin' to trade ALL the days, from this day to that, for one chance, just one chance, to come back here and tell our enemies that they may take our lives, but they'll never take... OUR FREEDOM" ~ William Wallace (in the movie Braveheart)