Having a courtyard, reading books, and tasting tea shows that the living conditions are good. "For the time being" and "quietly watching" means that you don't care about worldly affairs and like a leisurely life (maybe you can't realize your ambitions and feel a little helpless). Wealth, honor and fame are all illusory, just like frost; haze is freer (compared to frost) and represents the life of wandering clouds and wild cranes; haze is the true meaning.
In short, the author lives a leisurely life, not caring about worldly affairs, not seeking wealth and fame, and adjusting his mentality to live a good life in this world.