我心匪石不可转也我心匪席不可卷也
[wŏ xīn fĕi shí bù kĕ zhuăn yĕ wŏ xīn fĕi xí bù kĕ juăn yĕ]
This username draws from the classic poem 'Meng' in The Book of Songs (Shijing), conveying steadfastness and unwavering love. It means 'My heart is not a stone that can be turned; my heart is not a mat that can be rolled up,' symbolizing the constancy and depth of one's feelings.