Positive emotions aren’t reactions. They aren’t effects. You aren’t happy because you believe, expect, want anything about or from the sunset. You aren’t at peace because you expect, want, believe anything in particular walking down the street with your true love. You are happy, content in these states exactly because you don’t.
As I ran down the steps to my station, I did have one fleeting thought: Might riding the subway not be a great idea today? On the other hand, I needed to be at my desk in our office as quickly as possible; and it seemed likely the city would shut down the subway even without any further incidents.