青灯一盏南柯一梦
[qīng dēng yī zhăn nán kē yī mèng]
Referring to a 'a greenish lamp and a dream under the south branches of a tree'. Originating from Chinese literature, it signifies fleeting experiences of wealth and power, likened to an ephemeral dream, reflecting impermanence and illusory nature of life’s successes.