Those who cause a storm will wind up in a storm themselves. Those who are kind towards others will get kindness in return. Those who habour malicious intentions will suffer from the same intentions. This cycle is what this series is trying to convey to us. Though each episode tells a different story but basically, the series has a single message. Live with wisdom and knowledge is a life that promises a fulfillment.
Those who experience strange things at funerals, get a terminal illness, become the victim of their own black magic and so on, are actually those who must have committed a horrible sin or those who live in desperation.