I guess another way of wording it would be to say that we get comfortable, we hit the cruise control on the road of life and kick back emotionally, and just enjoy it. Then, anything that slows us down or prevents us from proceeding the way we want to is equally upsetting/annoying/Problematic, no matter how big or small the issue actually is.
This doesn't work 100% in my head yet. For example, I don't spend all my time upset, not eating, in despair, like I did six months ago. The Problems I have now aren't having the same effect on me as the ones I had then. Those were verifiably worse. Also, there is this extra space in our heads above and beyond that of day-to-day problems, for catastrophic and traumatic events like deaths or something. So in that regard, it doesn't entirely work yet.