The classification of introversion versus extraversion IS about how you manage your energy or how you recharge, in part. But the other piece of it, the bigger piece of it, that we don't really talk about is introversion and extraversion is about where the real world resides for you. It's where you find meaning and purpose. For most people who are extraverted, their main source of purpose and meaning is external to themselves: other people. For most people who are introverted, it's more internal: closer to yourself.