What does this sentence mean: yang comes from the ground, yang is in the yin, and man is in heaven?

1 Shannan water flows in the north, while Shanbei water flows in the south. It means that Shan Zhinan, the north of the water belongs to Yang, the back of the mountain and the south of the water belongs to Yin. Therefore, Yin and Yang are used as horizontal pronouns.

In addition, referring to the thirty-first chapter of A Dream of Red Mansions, Xiangyun couldn't help laughing and said, "I said you don't have to talk, but you prefer to talk." How to answer this? Heaven and earth are endowed with yin and yang, regardless of good and evil, strange and ever-changing, they are all yin and yang. How many lives have been lost, people are rare, and the reason is still the same. "Cuilv said," So, from ancient times to the present, it's all yin and yang? Xiangyun said with a smile, "The more you talk, the more you talk." . What is' all yin and all yang'? Are there still yin and yang? "Yin" and "Yang" are just one word. When Yang is exhausted, it becomes Yin, and when Yin is exhausted, it becomes Yang. It's not that the yin runs out and another yang comes out, but that the yang runs out and another yin comes out. "Cui Lv said," I'm so confused! What is Yin and Yang? It is invisible. I only asked the girl, what is this yin and yang like? " Xiangyun said, "What's the difference between Yin and Yang? Just one breath, the vessel is shaped. For example, the sky is yang and the earth is yin; Water is yin and fire is yang; The sun is yang and the moon is yin. " Cuilv listened, smiled and said, "Yes, yes, I understand today. Strange Taoist priests call the sun' the sun' and fortune tellers call the moon' the moon star'. That's the reason. Xiangyun said with a smile, "Amitabha!" ! I just realized. "Cuilv said," All these things have yin and yang. Are those mosquitoes, fleas, midges, flowers, grass, tiles and bricks also yin and yang? Xiangyun said, "Without Yin and Yang, how can anyone?" ? For example, which leaves are divided into yin and yang, where the sun rises and it is cloudy here. Cuilv nodded and smiled: "So, I can understand." It's just how the fan in our hand is yin and yang. Xiangyun said, "It's sunny here and cloudy there. "。"