What does "no pedestrians" mean?

Nothing will be satisfactory in the near future. The absence of pedestrians means that there is no result in finding the lost or missing person. Or people who work outside the home, want to come back and can't come back for various reasons.

Its deep meaning is to be cautious, not to ask too much, to be down-to-earth and to live a stable life. Don't importune everything, because importune can't be obtained, and even if it is obtained, it will probably be every cloud has a silver lining.