What kind of mood does the great cold solar term represent?

This is the problem you found there. I think it's an exam or something, but it's obviously very different from our major.

To put it simply: the great cold is the coldest time in winter. People are lazy at this time, because the temperature is very low, and it seems to reach the freezing point in an instant. But what should we do when we think of the great cold? We are celebrating the New Year, so we are in a very good mood unless something bad happens at home.