Simplify the following text for a Grade 12 native English-speaking person.
Original: According to Austen scholar Claudia Johnson Janeitism is `` the self-consciously idolatrous enthusiasm for ` Jane ' and every detail relative to her '' .
Simplified: Claudia Johnson says that Janeitism is `` the self-consciously idolatrous enthusiasm ( love ) for ` Jane ' and every detail relative to her ( about her ) '' .