左半空下雨右半空放晴
[zuŏ bàn kōng xià yŭ yòu bàn kōng fàng qíng]
'Rain on the left sky, clear sky on the right.' Metaphorically speaking, life has its highs and lows like two halves of the same space, representing the ups and downs coexisting at the same time. This conveys an acceptance or optimism towards contrasting moods or events.