As Sri Nisargadatta Maharaj had pointed out as we in mind try and ask the question Who Am I and if personality is it, then there is always an entity behind it in existence that is aware of this question and hence because of this it cannot be personality only in existence in us. Self-actualization is the work of personality and the verbal thinking mind. So one wants to know who is this behind this facade that is me that is always looking at all the questions I am asking about myself. He is always there when I ask the question. Hence your self-awareness is coming from another realm that you are part of. One is not isolated from the Whole. In fact, one is part of the Whole and that Whole is also looking at the self-actualization that is you locally. So Who is that that is being self-aware.