The universe has an impact on human society. Humans, the spirit of all things, can also sense the movements of heaven and earth. There are always sages who can understand the mysteries of heaven.
Fuxi's creation of the Eight Trigrams is a vivid example.
The Book of Changes states: "In ancient times, the king of the sacrificial clan was the ruler of the world. When he looked up, he observed phenomena in the sky, and when he looked down, he observed phenomena on the ground. He observed birds and beasts in a way that was suitable for the ground. He approached various bodies and objects from afar, and thus began to create the Eight Trigrams." This passage is usually summarized as "Fuxi observed the sky and phenomena on the ground, and created the Eight Trigrams." It is the oldest record of ancient observation and timing, and also discusses the origin of the Eight Trigrams, as well as the relationship between the Book of Changes and observation and timing.
宇宙影响人类社会，万物之灵人类，也能够感应天地的运化，总有圣贤能够读懂天机。
伏羲造八卦，就是一个活生生的例子。
《易》曰：“古者包牺氏之王天下也，仰则观象于天，俯则观法于地，观鸟兽之文，与地之宜，近取诸身，远取诸物，于是始作八卦。”这一段记载，通常简述为“伏羲观天法地，而作八卦”，是对古代观象授时的最为古老的记载，同时也说到八卦的起源，以及《易经》与观象授时的关系。