Part Two: The Heritage
Why Tien-Tao descends in China
Located at the center of the world, China has the oldest civilization and is the most advanced in spiritual development. Hence China is chosen by God as the first place to descend the essence of Tao.
Upon the Zhou Dynasty, China’s spiritual fate changed because Emperor You and Emperor Li were not upright. The whole country fractured into warring states and became what is known as the Epoch of Spring and Autumn and Warring States in Chinese history.
The upheaval led to a collapse in morality, and virtues were no longer honored. Thus, the essence of Tao, along with the Heritage of Tao, ceased to continue in China.
Then, the essence of Tao was descended in India. Later on, Da-Muo Zu-Shi (Bodhidharma) left India and carried the essence of Tao back to China, returning the Heritage of Tao. There were five Patriarchs after Da-Muo Zu-Shi, after whom the essence of Tao became inaccessible to most people.

https://fi.wikipedia.org/wiki/Bodhidharma
From then on, the essence of Tao was passed on in secrecy. Thus many who longed to receive the essence of Tao did not know where to seek. While the essence of Tao was discontinued in China, the five great religions flourished like blooming flowers all over the world as they carried out their teachings.
Due to differences in cultural backgrounds,
these religions put up barrier among themselves.
Having passed the stages of transmitting the essence of Tao by Saints and seeking the essence of Tao on Scriptures, the five great religions now are powerless to stem the tide of deteriorating morality as heresies dominate the world.
When flowers wither,
(i.e., the influences of
the five great religions weaken),
it is time to bear fruits
(i.e., the time to amass souls
before the Last Catastrophe).
The time has come and God again descends Tien-Tao to the Eastern Earth (the Earth). The King of all kings, Mi-Le Buddha will come to encounter the Last Catastrophe of the Third Period and save the world. This development is predestined.
China has long been nourished by Tien-Tao and has the most broad and profound culture. The foundations of morality, the three orders of relationships and the five virtues, are firmly planted among Chinese. Therefore God chose to descend Tien-Tao in China first, and then be spread to the whole world.