Why are our thoughts and emotions so important and why must we constantly try and purify them? Bhagawan lovingly explains by drawing our attention to an interesting fact in the Bhagawatam.
The distinction between a human and a demon arises only from qualities. Demons do not have any peculiar physical traits as portrayed in cinemas and books. They are humans also. It is only by qualities that a human becomes a demon. In the Bhagavatam there is a nice example. Krishna was God Himself. His parents, Devaki and Vasudeva, were true humans. And Devaki’s brother, Kamsa, was a demon. Thus, all three categories — divine, human and demon — can exist even within the same family! Kamsa was a demon because of his anger and cruelty. Devaki and Vasudeva were humans for their kindness and compassion. Possessing Divine traits, which are beyond all attributes, Krishna was God.
– Ch 8, Summer Showers 1995.
Give up the company of the worldly minded, the association with those infected by demonic qualities. Seek always the company of the wise and the good. – BABA