紧握着的东西如何说放就放
[jĭn wò zhe de dōng xī rú hé shuō fàng jiù fàng]
The literal sense is about 'How could something gripped firmly be just let go', signifying reluctance and difficulty of giving up, whatever being an emotional relation, a valuable object, etc., once tightly possessed, it becomes hard to part with voluntarily.