Obsessed is most appropriate to describe a person whose mind and heart are concentrated on one idea to the exclusion of everything else.
I hope this helps you. ☺
Mr. O'Brien and Winston are the principals starrings of the novel.
Textually O'Brien tells Winston: The first thing you must realize is that power is collective. The individual only has power in so far as he ceases to be an individual..alone...free.. the human being is always defeated.
That is the first thing from O'Brien to Winston.
You move your legs and both are hobbies.
The answer is Monotonous.
eg. Talking in a monotonous voice.
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