思念成海回忆成灾
[sī niàn chéng hăi huí yì chéng zāi]
'Missing Forms the Sea, Memories Form Calamities.' It means the person's nostalgia and longing have piled up like seas. Too much reminiscing becomes like a disaster, making one submerged in emotions deeply, often associated with deep sadness or melancholy over past experiences.