Life's Purpose

I was skimming channels yesterday (sunday) and came across DD1's Upanishad Ganga -it was being shown as a stage drama. A king is shown mourning the death of his kid.Narad Rishi invokes the "jeevatma" of the young child and asks it to return to this dead body to alleviate the great pain of the heartbroken king and queen. What the Jeevatma then said really shook me and my husband up. He said-" I have had thousands of parents through my endless cycle of births and deaths, why should I appease just these two?These two may have been my parents in other lives too. I don't even remember since which life/janma, I became their son.So I will not re-enter the body of the child."