Direct answer
The emptiness appears when you live a model of power handed to you from outside: you had to HAVE power because it was expected of you, not because it expressed who you are. When your strength lives only in the title, the recognition or others' validation, none of it fills you, because the power does not live within.
In Andrea Eboli's research, 80% of people believe power lies outside them and only 8% recognize it lives within. You can have everything that defines external power and still feel unfulfilled, because what validates you is always on the outside.
We keep handing our identity over to these institutions. They have the ability to say whether we are good enough or not.
The path is not to accumulate more. It is to cross the distance between HAVING power and BEING power: finding within yourself a strength that does not disappear when recognition changes. This begins with identity, the capacity to recognize who you are within your own story, without continually depending on external confirmation.