沧海成桑田
[cāng hăi chéng sāng tián]
'沧海' (cánhǎi) refers to the vast sea, while '桑田' (sāngtián) refers to mulberry fields. This name comes from an ancient Chinese saying meaning 'great changes have occurred over time.' It expresses the idea that time can transform everything profoundly, much like how seas turn into farmlands.