It starts with an inquiry.
There’s a whole lot more about self-inquiry to what we perceived to know with only our five senses such as sight, hearing, taste, smell and touch.
It helps to know that inquiry about self is different for everyone and as a human being we’ve done it in different levels.
It can be done open minded or in the form of contrasts (bad or good, moral or immoral and evil or righteous etc.).
Some say there’s no wrong or right way of self-inquiry, just different; realizing that a human being is unique and no need for self-judgment on how to go about it.
The self-inquiry may start at the level of conceptual thinking and has to evolve beyond conceptual thinking to a higher reasoning based on experience.
Knowing who you are or self awareness happens, when one steps out beyond conceptual thinking, which is not explain by using words.
Words might help as a pointer to what is only known by awareness .
More on my views . . .