I know the answer but it's a secret
Secret History of Religion Knights Templar - 2006 TV was released on: USA: 2006
They had to be secret about their religion
Definition of conspiracy is to plot, usually in secret, to an unlawful act. So religion itself is not a conspiracy.
SECRET
They were a religion created in 1734. They meet at a secret castle every day and worship idols such as fruit and trees.
If it isn't public its more of a secret movement, not a religion.
Religion convert can be in secret only if one's life would be at risk if one's religion convert made in public. Otherwise, if religion convert is based on strong belief then one should be strong enough to publicize religion convert at least to be able to perform the ritual worships freely without any concern.
All religions have some "secrets" that are known only if you practice the religion, read the holy literature, and talk with the holy people of that religion. Most of these are not actually secret - it's just that people who do not follow the religion are not taught about those things.
The Upanishads are secret texts of the Hindu region. Some say they are more of a philosophy than a religion. The twelve texts of the Upanishads give instructions for moral questions.
Edwin W. Smith has written: 'Aggrey of Africa' 'Religion of Lower Races As Illustrated by the African Bantu' 'The secret of the African' -- subject(s): Religion
They practice the dynamics of spiritual mind treatment & affirmative prayer as well as follow the teachings of "The Secret".