There is the classic question. Was it Ramana Maharsi who asked? The question is: Who am I?
The answer cannot be: I am a 50 year old woman practicing Ashtanga yoga. I used to work as an accountant. I have fair hair and like black coffee. This is me.
The answer is: Consciousness is all there is. (Everything is fiction.)
That I'm 50 is only because we use a calender which is arbitrarily. Today I might practice yoga, but tomorrow I might be forced to stop with this practice. Today my hair is fair, in 10 years perhaps grey. I might love Earl Grey tea one day. All my given answers are fiction. Everything that I mentioned can change quickly.
The answer is I'm not or nothing but a body-mind organism, if you like, that is changing permanently, nothing with what we can identify as our "I".
(You are not your body, you are not your mind, you are not your feelings, you are not your thoughts, but pure consciousness)
This is pure Advaita tradition. (Very quickly and modest written).
Enlightenment (the understanding that nobody is the doer, that life happens) happens therefore to nobody. That's why nobody can become enlightened. :)