Simplify the following text for a Grade 7 native English-speaking person.
Original: Grotto Masters are not spokespersons for the Church of Satan , nor are Grottoes local representations of the Church of Satan .
Simplified: If a Grotto stops being useful it will be closed , as the Church of Satan has always done . Grotto Masters and Grottos do not represent the Church of Satan unless they have other authority to do so .