Diet Reincarnation

A person must have a good appetite to live. What he eats is not eating. In order to survive and to satisfy more instinctive desires, fear, wailing, and screaming are just a little bit of the same things in this reincarnation. People live for themselves, otherwise they should live for others. If anything happens, it will naturally be the sages who will take care of it. What do I need to do? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.