Everyone has certain powers. And I mean real superhero powers.
But each individual has a choice: will I use my power for good or for bad?
That's why midda literally means "measure." In what measure will you use your qualities? Will you use your personality to enlighten this world or to darken this world?
Everyone has a different neshama. We're all different, yet, our neshamot are yearning for the same thing: emet. What is emet? HaShem. Torah. Olam Haba.
And only after a person is connected to the emet, to HaShem, to Torah... will he achieve true happiness.