你有多重要只有我知道
[nĭ yŏu duō zhòng yào zhĭ yŏu wŏ zhī dào]
Meaning 'Only I know how important you are,' highlights a profound attachment to someone kept very private. There’s an underlying sentiment that speaks of cherishing something/someone uniquely without needing external validation, emphasizing deep-seated, possibly hidden feelings towards a person or object.