A boy trips in the forest and screams in pain, hearing his scream echoed back. When he yells insults at the echo, it insults him back, making him angry. His father gets the boy to understand it's just an echo by shouting compliments at the echo, which compliments them in return. The father explains that life is like an echo - it gives back what you put out, so you should treat others with kindness, love, and respect to receive the same in return.