Answer:
Orwell's main goal was to warn of the danger tyranny poses to society. He goes to great lengths to demonstrate the terrifying degree of power and control a totalitarian regime can acquire and maintain.
Explanation:
Hope this helps:)
A central idea is the main subject. For example, the main idea of "Humpty Dumpty" is that he was so broken, nobody could put him back together. Normally, a main idea is the thing in the piece that is most talked about.