鱼在深海无人知泪海知鱼泪她在我心
[yú zài shēn hăi wú rén zhī lèi hăi zhī yú lèi tā zài wŏ xīn]
Translated to 'Fish Weep in the Abyss; Only the Ocean Knows Fish’s Tears But They Live in My Heart', suggesting hidden sorrows only understood by certain entities, symbolizing unspoken grief, loneliness, and empathy towards unnoticed suffering, all deeply felt but concealed.