lost soul

基本解释

But, upon my lost soul, I won't be bad towards you again, Tess.
但是，我用堕落的灵魂向你发誓，我再也不会对你坏了，苔丝。
Lady Gaga describes herself as “a freak, a maverick, a lost soul looking for peers”.
嘎嘎小姐把她自己称为“一个怪人，一个反叛的人，一个正在寻找同伴的迷路的灵魂”。
Life played a trick on him, he also started the game of life, drinking, betray others to change, Xiangzi thoroughly corrupt for city garbage, turned into a lost soul, a dead-alive person.
生活捉弄了他，他也开始游戏生活，吃喝嫖赌，出卖他人换钱，祥子彻底堕落为城市的垃圾，变成一具失去灵魂的行尸走肉。

This is a point that is often lost in the Republic, that it is first of all a work on the reform of the soul.
这是在《理想国》中常被落掉的观点，即改革灵魂,为首要之事。
耶鲁公开课 - 政治哲学导论课程节选
The thought would be, when the soul and the body have been separated-- such the dualist explains-- the soul has lost its ability to give commands to the body.
也就是说,当灵魂与肉体分离时,以二元论的解释,灵魂就丧失了对肉体的控制能力
耶鲁公开课 - 死亡课程节选

"Without a company to run, I was a lost soul, " he says.
FORBES: Catch and Release

If you call someone a lost soul, you mean that they seem unhappy, and unable to fit in with any particular group of people in society.