What Is Meant by Heavenly Secrets?

At the summit of Mount Han sat a blue-green lake, serene and of unknown depth. Although it was surrounded by cold, the lake's surface still emitted a steaming fog.

By the lake shore and on the cliffs, scattered in the grass, were stones of all sizes. Of course, even more stones were immersed in the lake. Some were resting on the lake bed while others revealed their sharp corners to the sky. Many dragon cranes that were flying south to spend the summer were standing on these stones, contentedly preening their feathers.

This lake was the Heaven Lake, the congregation of many hot springs. Those stones were the Heavenstones. In time immemorial, they had descended from the heavens, and although they were not the same as the monoliths within the Mausoleum of Books, received the ardent worship of generations upon generations. They lived much more at ease and lived more wild and interesting lives.