久居孤岛无人问长居深海无人知
[jiŭ jū gū dăo wú rén wèn zhăng jū shēn hăi wú rén zhī]
Translating as 'Living on a lonely island for long nobody would care about; residing deep sea for long unknown to anybody', it vividly illustrates the feelings of isolation, loneliness and insignificance of a heart far away from human attention.