Maybe one day someone will get me to understand the difference between religion and cult.

Cult: a small unpopular religion.

Religion: a large popular cult.

 

Or, if you prefer:

“the only difference between a religion and a cult is the amount of real estate they own”

-Frank Zappa

Though that kinda falls apart in the Scientologist’s case. They have acquired a lot of real estate since Zappa first made that statement.