心里有座坟葬着未亡人心里有座坟守着未亡人
[xīn lĭ yŏu zuò fén zàng zhe wèi wáng rén xīn lĭ yŏu zuò fén shŏu zhe wèi wáng rén]
Literally 'There's a tomb in my heart for someone who is living dead,' it signifies the pain and burden of carrying deep sorrow or grief inside one's heart, perhaps over lost love or unreturned affection, with a lingering sense of mourning and remembrance.