The invaluable lesson I get from watching The Empress of China is that to stay happy ones need to get rid of jealousy and greedy.
As mentioned in the Al-Quran, we have to be content with what Allah provides us and fear Allah at all time, as mentioned in the Al-Quran
Which means: And whoever fears Allah – He will make for him a way out. And will provide for him from where he does not expect. And whoever relies upon Allah – then He is sufficient for him. Indeed, Allah will accomplish His purpose. Allah has already set for everything a [decreed] extent.” (Al-Talaq, 2-3)