Who you know yourself to be” is simply one way of being that is available to you, and you are not stuck with that way of being.
I'm an adult and I know what power means in the modern world. In the modern world, power is mainly defined by such factors as the economy, defence and cultural influence. I believe that in terms of defence, Russia is without any doubt one of the leaders because we are a nuclear power and our nuclear weapons are perhaps the best in the world.