悲伤是一个人的情歌难过是一个人的思想
[bēi shāng shì yī gè rén de qíng gē nán guò shì yī gè rén de sī xiăng]
Translates to 'Sadness is a love song when you’re alone; Sorrow comes with solitude,' expressing a deep understanding or experience of loneliness and its associated emotions. The username conveys that sorrow can manifest through music (love songs) and personal reflection or introspection (thinking while being sad).