Bế Ðạo & Khai Ðạo  

Caodaism maintains that Đạo had been closed before 1926, that is to say, other doctrines, which are also God's messages, had been gradually embellished so much that it had been hard to understand or practice them. Therefore, it had been impossible for religious believers to achieve their goal.

Then, in 1926, God came via magical tools, spiritualism, to preach the true doctrine by combining and refining the old doctrines.

That way, God saves all souls in the Third Amnesty and transfer them to the Ethical Cycle. As a result, the holy path is said to have been open again.