Between the filming of Carrey's interview & the release of the film on Netflix in 2017, Jim Carrey had a sort of spiritual awakening as mentioned in the closing of the film. Carrey revealed that he saw the world as a facade and a game to be played by people that are determined enough to live out their roles to extremes, like Andy did with his performance attacking the mainstream realm of entertainment at the time. See more
Where did this character come from? What is the dirt that the pearl is built around? And the pearl is the personality that you build around yourself as a protection against that thought: "If they ever find out that I'm worthless, if they ever find out that I'm not enough, I'll be destroyed".