From your dream, it may indicate that there are great fluctuations around your real life, and the collapse of high-rise buildings will affect you. Look down, then the police appeared, and you left safely, indicating that if something really happened, there would be dignitaries to help you, and it would be very safe.
Another possibility is that it happened to rain and thunder when you were sleeping. When people sleep, hearing and some brain cells have no obvious absorption and reaction to the outside world, which makes you have such a dream! !