"Bhikkhus, it is not easy to find a being who has not formerly been your mother...your father...your sister...your son...your daughter..."
If the above words of Buddha are true, then how can we be unkind to anyone? I came across this story while searching for some answers. Buddhism, though I am no Buddhist, is full of subtle powerful teachings that can be imbibed without following any rituals. I am in the stage of life where burdened by responsibilities, I might ignore my elders, parents, and in-laws, their advices, might find their habits irksome and might hurt them. This story teaches me filial piety. I understand now that we may have differences with people including our elders but that doesn't mean that we should stop being polite, kind, caring or dutiful towards them. And also that we can never repay the debt of kindness of our parents, all of them :)