what does Kierkegaard mean by "mood" in The Concept of Anxiety?

"Mood" sort of means feeling

...and, Tel, maybe conveyed indirectly. Like in aesthetics we'd emphasize apparent good and bad of it, in meta the logic or philo, in psych the humanoid reaction

Cis help

Edited to remark, at 85 I confuse folk. Let's hope to hear from Cis...

We need more info to really tell, but from what you have posted, I would say that mood = environment.

One's anxiety might be different in school than at home, for instance.