Duke Zhou dreamed that he was a special police officer and had been running.

This dream of running, like a dream of being chased and attacked, is a palpitation caused by a fast heartbeat. If the heartbeat is too slow, it will cause the dream of flying people to fail. In other words, human beings are prone to two kinds of palpitations, namely, too fast heartbeat and too slow heartbeat. During sleep, these two kinds of palpitations cause two kinds of dreams: running or being chased and attacked and flying people falling.