Thinking about thinking
The unfortunate conundrum with the human mind is, it fights so fiercely to keep the status quo. With every change in thought sequence, or external factors upsetting the norm, the mind panics. It searches high and low to fix what's altering the mood. Finds the patterns in words to repeat, mantras that proved effective before. Then processes body language and vocal tone to understand if said words are working. If not, it then moves to new habits, drastically changing behaviors, course correcting lifestyle choices, hoping to not seem overly dramatic.
Everything is firing in the brain so quickly to bring things back to the way they were. Sameness. The mind doesn't like loss, or changes, even though it's in a constant state of flux to maintain homeostasis.