From the author’s introduction:
The people of the world stand under the principle of power. The whole social entity is governed by power, this being the highest value peoples aspire to and by which they counted, weighed, and judged. But, contrary to what is usually assumed, it is not external power which determines everything, but fundamentally internal power is the core of the power phenomenon. As this core gradually matures over time, it bursts open the shell of external power under whose protection it grows to maturity.