I don't think I agree with this. We are defined by our actions (choices). (Rereading...I think injecting the word "worth" in there is a bit of a misdirect).
You got it a bit wrong. Here's what she actually says: (sings)
I have crossed the horizon to find you
I know your name
They have stolen the heart from inside you
But this does not define you
This is not who you are
You know who you are
Who you truly are
And this is TRULY a nugget of wisdom. Moana is AWESOME!
