In the deep mountains and secluded forests, there stood an ancient and peaceful Taoist temple, like a pearl standing alone in the world, exuding a faint aura of peacefulness of Taoism. In the temple, there was a young Taoist priest named Qing Yu, who had delicate features and an extraordinary and refined temperament. He was wholeheartedly immersed in Taoist classics and cultivation, determined to explore the way of heaven and earth and pursue the purity and transcendence of the soul.

One day, as usual, Qing Yu went into the mountains to gather herbs in search of miraculous herbs and medicines for refining pills. The mountain forest was quiet and deep, and the sunlight shone through the thick branches and leaves, casting mottled shadows. Suddenly, a faint whimper caught his attention. Following the sound, he saw a snow-white fox lying in the grass. Its hind leg was caught in a trap, bleeding profusely, with pain and helplessness in its eyes. Compassion immediately welled up in Qing Yu's heart. The Taoist teachings of "loving all things" and "cherishing life" stirred in his heart. He quickly stepped forward, carefully opened the trap, and took the white fox back to the Taoist temple.

In the temple, Qing Yu used his medical skills to carefully treat the white fox's wounds. He collected herbs from the mountains, carefully processed them, and applied medicine and bandaged the fox. Under his meticulous care, the white fox's injuries gradually healed. As days passed, the white fox recuperated in the temple and spent day and night with Qing Yu. It often lay quietly beside Qing Yu, watching him read Taoist scriptures and practice Taoist skills, with a seemingly special emotion in its eyes.

Finally, the white fox fully recovered. One morning, when Qing Yu came to the courtyard as usual to prepare for cultivation, he was shocked by the sight before him. Where the white fox had been, stood a graceful and beautiful woman. She was dressed in a white dress, as beautiful as a fairy descending to earth. She bowed slightly and said softly, "Benefactor, I am Ling Xue, the white fox. Thank you for saving my life. I have nothing to repay you with, so I'm willing to stay by your side always." Although Qing Yu was surprised in his heart, he knew well that all things in the world had spirits, and there were many records of spirits transforming into humans in Taoist classics.

Since then, Ling Xue stayed in the Taoist temple and practiced together with Qing Yu. She was extremely intelligent and had a deep understanding of Taoist doctrines. She often discussed the mysteries in Taoist scriptures with Qing Yu. During their daily life together, Qing Yu, whose heart was originally only focused on Taoism, gradually had ripples in his heart. He found that he had developed a special emotion for Ling Xue. This emotion took root and grew in his heart, making him both happy and terrified. He knew deeply that humans and demons were different by nature. Humans belonged to yang, while demons belonged to yin. The combination of the two went against the common sense of the world and the Taoist principle of the balance between yin and yang, and might incur divine punishment.

The inner struggle and contradiction made Qing Yu extremely painful. He often wandered alone along the corridors of the Taoist temple late at night, looking at the starry sky and thinking hard. Finally, he made up his mind and went to the Hall of the Old Moon God deep in the Taoist temple to seek a solution. In the Hall of the Old Moon God, the incense smoke was curling up, and the statue of the Old Moon God was solemn and majestic. Qing Yu knelt devoutly on the futon, clasped his hands together, and prayed silently in his heart. He told the Old Moon God everything about himself and Ling Xue, praying for the guidance and blessing of the Old Moon God.

Perhaps his sincere feelings moved the gods of heaven and earth. Just as he was praying, a soft light lit up in the hall. The Old Moon God slowly appeared. He had white hair and a kind face, holding a red thread in his hand. The red thread was shining with a strange light, as if it contained endless mysterious power. The Old Moon God looked at Qing Yu and said with a smile, "All things in the world have their own destinies. Although you and this white fox are different in identity, when love comes, it's hard to part. Now I'll tie you two with this red thread. I hope that under the guidance of Taoism, you can practice together. Don't go against the will of heaven and conscience, and follow the principle of the harmony between yin and yang." After saying that, the Old Moon God gently waved the red thread. One end was tied around Qing Yu's wrist, and the other end floated towards Ling Xue. In an instant, the red thread turned into a brilliant light, like a lively snake, drawing a graceful arc in the air and tightly connecting the two of them.

Since they were tied by the red thread, Qing Yu and Ling Xue's feelings for each other grew deeper. They practiced Taoist skills and studied classics together in the Taoist temple. When Qing Yu encountered a bottleneck in his cultivation, Ling Xue, relying on her spirituality and her perception of the way of nature, could always give him unique inspiration. And when Ling Xue was confused about understanding Taoist doctrines, Qing Yu would patiently explain them to her. They accompanied each other in the mountains and forests, watched the sunrise and sunset, understood the cycle of the four seasons, and experienced the state of "harmony between man and nature" pursued by Taoism.

During their practice together, they often met some men and women who came to the Taoist temple to pray for good marriages. Whenever they saw these people's longing and expectation for beautiful marriages, Qing Yu and Ling Xue would tell them their own story and the 神奇力量 of the Taoist red thread of marriage. After hearing it, people were all moved and amazed, sighing with admiration for the profound and mysterious Taoist culture.

As time passed, the love story of Qing Yu and Ling Xue spread widely in the local area and became a much-told tale among people. Their story was like a bright lamp, illuminating people's longing for beautiful love in their hearts. And that red thread, which symbolized the Taoist marriage, also became a symbol of love in people's hearts, making people believe that there was a mysterious force silently guarding the marriages in the world, guiding those who were fated to meet, know each other, and accompany each other. Whether they were humans or demons, as long as they had kind hearts and followed the great Tao, they could find their own happy endings under the arrangement of fate. This was the profound philosophy and beautiful meaning behind the Taoist red thread of marriage. It transcended time and space and was passed down through the ages, allowing people to still feel the tranquility and warmth from Taoism in the hustle and bustle of the world, and to be full of awe and expectation for love and fate.