Terry Pratchett has a very good explanation for what goes on in our minds on a daily basis. He refers to it as first, second and third thoughts.
The first thought might go like this: “I don’t like that person. He is obnoxious.”
The second one would then be: “Is he obnoxious or are you simply thinking that because he disagrees with you?”
Then the third one chimes in: “You’re analysing perfectly normal feelings.”