my T tells me feelings aren't facts. this was more often when I would report feeling depressed, he would say, you don't have to STAY depressed; like if you felt angry, you wouldn't have to ACT on your anger; you would wait and think about what you wanted to do about the situation. So you don't HAVE to sit and BE depressed all day - it's not a FACT, it's a FEELING, and it CAN pass.
This made sense to me, because I know that when i'm tired or thirsty, I sometimes FEEL that as hunger - so the hunger is not a fact; being tired is a fact, I only slept 5 hours last night is a fact; I am feeling hungry, but it would be more satisfying, more productive, more restorative to nap than to eat. I realize that's a physical example of a feeling, not emotional, but I liked the concreteness of it. I haven't been that gloomy since.