一眼江湖已白头
[yī yăn jiāng hú yĭ bái tóu]
The name suggests that 'In one glance at the rivers and lakes (representing the world and adventures), one already turns grey-haired'. It reflects profound insights or emotions regarding aging quickly due to the vast and unpredictable nature of life and experiences, emphasizing wisdom earned through trials or the feeling of being prematurely aged.