I always have this question in mind when I read Bhagawad-Gita. In the 11th chapter of Gita when Krishna shows Vishwaroopa, this means everything originated from Him. But why this difference that Devatas enjoy and Humans are made to suffer, when both Devas and Humans are originated from Him.
In Mrityuloka, whoever will come, cannot escape without some or the other sin. Why animals, humans and other creatures were created?
Is it that humans only evolve and one day become a Devata? The present Devatas one day, some time in the past, were humans?