Don't just sleep to dream. Dream big while you're awake too.
Dreams are a sign for action, a chance to get out of your comfort zone and dive into the work.
Dreams all start with a idea, often so ridiculous that we laugh at them. But the future of regret for not at least trying to achieve our dreams is much less comical.
There are no false dreams in real life, only a lack of of courage. Nothing is impossible but dreams don't come free either. Where is the effort?