久居我心长居我心
[jiŭ jū wŏ xīn zhăng jū wŏ xīn]
This username expresses deep and long-lasting feelings, emphasizing the persistence of someone or something in one’s heart. '久居' means living for a long time, while '长居' suggests continuously inhabiting. So the phrase can be understood as 'Someone/Something has been eternally present in my heart.' It implies deep affection or remembrance.