Lei Feng is tired of helping his comrades, but he feels very happy. Why?

Lei Feng lived in a time when material resources were scarce, and what everyone got was distributed by the public. Lei Feng will know how to market himself, help others to do things privately, give things away without leaving a name, and others find that once everyone knows to praise his selfless dedication, Lei Feng gains a high reputation and spiritual satisfaction, and everyone is the same materially.