It's hard to relate to someone who has such wild/extreme 'mood swings'. [=someone whose mood changes very quickly]
She turned down the lights and lit a candle to create a more romantic 'mood'. [='atmosphere']
I'm sorry. I'm just not 'in the mood to talk'. [=I do not want to talk to anyone right now]
(..) Inner peace. Master Shifu. Master Shifu, what do we got? Pirates? Vandals of Volcano Mountain? Whatever it is, I will take them down. 'Cause I am in a mood. I need to get something done, you know what I mean? What are you doing? One of Master Oogway's final teachings. Awesome! (..)2011 Kung Fu Panda 2