The custodian of the local Kali Temple told the little boy that God doesn’t stay there but within everyone!
It means that everyone can see God or talk to God by doing good things, and that there is no need to engage a middleman to reach the God.
Since then, the little kid believes that he is the supreme authority to look after his thoughts and acts. And that for doing anything wrong, no imaginary power will punish him. In such case, he’d have to face consequences only, on this Earth.
He realised that his life on Earth is a one-time facility and that there’s no afterlife to wait for, neither any Heaven or Hell.
So he controls his thoughts which helps him to act accordingly — good with good people and the Nature, and bad with the harmful ones.