It means not doing anything serious and meaningful, but doing something useless and wasting time. -from a folk proverb. Instead of doing something meaningless, it is better to go out for an outing, study and help some people in need, even if it is to do some small things around us. Although some things are meaningless, it is undeniable that they enrich our lives, but we should also control our time and not spend too much time here.