What does it mean to eat and kill in a fleeting time?

A special phenomenon. Delaying Chen Jia's eating and killing means that according to the inference of sixty jiazi in ancient China, one jiazi is born every ten years, and Chen Jia means the fifth year of every decade, that is to say, a special phenomenon will appear in the fifth year of every decade, which is called "delaying Chen Jia's eating and killing". It means that in the fifth year of every decade, there will be a special astronomical phenomenon that affects people's lives. For example, there will be floods, droughts, plagues and so on. These disasters will affect people's lives. Therefore, people will call this phenomenon "fleeting time eating and killing" to remind people to pay attention to their lives so as not to be affected by such disasters.