勿忘已心
[wù wàng yĭ xīn]
It literally means “Do not forget one's own heart”. 'Heart' refers to emotion or feelings. Here, this net name implies that one should stay true to oneself. In modern life, sometimes under external pressure or temptation, it can be easy to get lost and depart from one's inner desire. This user name suggests adhering steadfastly to the principles deep inside one's heart and remembering what truly matters, maintaining initial aspirations and intentions amidst any changes in circumstances.