Hmm...I picked 'mood for drink' but it also depends on teas.
Green tea is definately 'mood for drink'..for example I never drink greens in winter or fall. For me it's strictly for spring & summer consumption.
TGY also is 'mood for drink' I love this tea after having finished a dinner, better if I have companies around me, it gets rid of meal left-over and refreshes my mouth.
I like to have Shu at night or when I feel a flu or hang-over (also relates to 'mood' I think
Fall is a season for Sheng, my body feels heat when drinking Sheng..so
I drink Yancha almost all the time, whenever my body lacks water..so it's more of 'drink for mood' thing for me