In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of Taiping Courtyard's lake hid a forbidden door. This door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. The Forbidden Door involved the secret of the extinction of mankind and the origin of Ye Qingmei. However, the specific secret content was not mentioned in the search results provided.

In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, there was a forbidden door hidden at the bottom of Taiping Courtyard's lake. It might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. This door involved the birth, aging, illness, and death of humans. It was related to Fan Xian's arrival in this world. The Qing Emperor had set up a secret room at the bottom of the lake. It was called the Glazed Tile Palace. It stored some important items and secret documents, including his books, works of art, treasures, and secret documents. This secret room was the Qing Emperor's private space and treasure vault. Its purpose was to protect them from being discovered and attacked by outsiders. The secret at the bottom of Taiping Courtyard's lake was an important trump card of the Qing Emperor. He used this secret room to protect his safety and power. The specific secret content was not mentioned in the search results provided.
The secret of Taiping Courtyard in Qing Yu Nian's novel was the forbidden door at the bottom of the lake. According to the contents of Ye Qingmei's letter to Fan Xian, there was a forbidden door hidden at the bottom of Taiping Courtyard's lake. It was also the final location of all secrets. This Forbidden Door might be a laboratory with modern high-tech equipment, such as mobile phones, navigation, computers, etc. The Forbidden Door involved human secrets and things that could subvert order. As for the specific secrets hidden in the Forbidden Door, they had yet to be fully revealed.
In Joy of Life, the secret of Taiping Courtyard was the forbidden door at the bottom of the lake. According to the contents of Ye Qingmei's letter to Fan Xian, this door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. In the letter, Ye Qingmei warned Fan Xian not to open this door, because it might subvert order. The Forbidden Door was also known as the Forbidden Door. It was a secret Ye Qingmei had left for Fan Xian.
In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, there was a forbidden door hidden at the bottom of Taiping Courtyard's lake. It might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. This door involved the birth, aging, illness, and death of humans. It was related to Fan Xian's arrival in this world. The Qing Emperor had set up a secret room at the bottom of the lake. It was called the Glazed Tile Palace. It stored some important items and secret documents, including his books, works of art, treasures, and secret documents. This secret room was the Qing Emperor's private space and treasure vault. Its purpose was to protect them from being discovered and attacked by outsiders. The secret at the bottom of Taiping Courtyard's lake was an important trump card of the Qing Emperor. He used this secret room to protect his safety and power. The specific secret content was not mentioned in the search results provided.
In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of Taiping Courtyard's lake hid a forbidden door. This door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. The Forbidden Door involved the birth, aging, illness, and death of humans. It was related to Fan Xian's arrival in this world. The specific secret content was not revealed in the search results provided.
In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of Taiping Courtyard's lake hid a forbidden door. This door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. The Forbidden Door involved the secret of the extinction of mankind and the origin of Ye Qingmei. However, the specific secret content was not mentioned in the search results provided.
According to the latest reference materials, in " Celebrating Years ", the secret under the pond of Taiping Courtyard was the entrance of the temple. In the play, the letter Ye Qingmei left Fan Xian mentioned that the truth of the extinction of mankind was hidden in the Forbidden Door, and this Forbidden Door was under the pond in Taiping Courtyard. In addition, after Fan Xian looked through the letter Ye Qingmei left behind, he fell into deep thought and guessed that the secret under the pond in Taiping Courtyard was related to the truth of the extinction of mankind.
In Joy of Life, the secret of Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of Taiping Courtyard's lake hid a forbidden door. It was also the final location of all secrets. The specific secret content was not revealed in the search results provided.
The secret of Taiping Courtyard was the Forbidden Door. According to the description in Joy of Life, Ye Qingmei had mentioned in her letter to Fan Xian before she died that there was a forbidden door hidden at the bottom of Taiping Courtyard's lake. This forbidden door was where all the secrets were. Taiping Courtyard was the place where Ye Qingmei had once lived. It was also the place where the Qing Emperor and the others remembered their youth. The Qing Emperor knew that the bottom of Taiping Courtyard's lake was different, so he had always sent troops to guard it and not let outsiders approach. As for what the secret at the bottom of the lake was, it was still unclear.
In Joy of Life, the secret under the pond in Taiping Courtyard was the Forbidden Door. According to the contents of Ye Qingmei's letter to Fan Xian, the bottom of Taiping Courtyard's lake hid a forbidden door. This door might be a laboratory. There might be modern high-tech equipment inside, such as mobile phones, navigation, computers, and so on. The Forbidden Door involved the secret of the extinction of mankind and the origin of Ye Qingmei. However, the specific secret content was not mentioned in the search results provided.