Comrade Chang Kaishen was even in his early thirties when he was a child, and he was the most determined Buddhist. No one would have thought that later he would let go of his piety toward Buddha and devote himself to the embrace of Christianity.
Many people say it is the power of Mrs. Soong Mei-ling .

For a politician, the wife does not have such great power.
Chang Kaishen changed his beliefs, this is the power of politics.
He needs the financial support of the Southeast Consortium, and Song Yaoru (Song Mei-ling's father) is the core figure of the Southeast Consortium.
This is a history that everyone in China knows, but the legendary legend must attribute the change in Chang Kaishen’s belief to the role of his wife Soong Mei-ling.
The reason why I look back on this history is to tell you that true belief should be rational and should seek benefits and avoid harm.
But there are actually not many people who can be as rational as Chang Kaishen in life. Even emperors have many people who lack rational thinking, such as Emperor Wu of Liang Xiao Yan.

As an emperor, he should have used religion to balance the various forces of the country, so as to achieve the purpose of maintaining his own rule. Who would have thought that Xiao Yan he devoted himself to Buddhism and always gave himself to the temple, coercing the country to use all the treasury to redeem himself.
As the founding emperor, Xiao Yan's thoughts were so unclear, no wonder he could only starve to death in the end. His son, , Xiao Tong , edited "Selected Works of Zhaoming", believed in literature, indulged in literature, and eventually died in three generations.

This reminds me of a great man. The great man’s mother, Wen Qimei, believes in Buddhism and worships Buddhism. The same is true for the great man in his youth. But when he walked out of Shaoshan , his thinking suddenly became clear. This sudden enlightenment accompanied him throughout his life, and all his thinking was for the purpose of revolution and building the country.
Chang Kaishen’s change of faith is for himself, and great men change their faith is for the country. This is the different achievements caused by the two people’s different minds.