Those who dream in the past.
Those who dream only small dreams.
Those who achieve a dream, and then live bored.
Those who dream big dreams, but with no plan on how to go about achieving them, so end up with nothing.
Those who dream big, achieve those dreams, and go on to dream even bigger dreams.
Your dreams measure the capacity of your thinking, how deep or shallow your thinking is, how your future will be is also measured by the size of your dreams, your confidence is also measured by the leave of your dreams, and your success in life will be measured by the size of your dreams.
Even your marriage relationship will be or is measured and a reflection of the size of your dreams. Shallow dreamers end up in a marriage relationship with shallow dreamers too, unless some change happens along the way; so is the big dreamer too. Like attracts like. So dream big, achieve those dreams and go on to dream even bigger dreams.