The formalized beginning and end of the ceremony acts as a dogmatic, anti-intellectual device, the purpose of which is to disassociate the activities and frame of reference of the outside world from that of the ritual chamber, where the whole will must be employed. This facet of the ceremony is most important to the intellectual, as he especially requires the "decompression chamber" effect of the chants, bells, candles, and other trappings, before he can put his pure and wilful desires to work for himself, in the projection and utilization of his imagery.
The "intellectual decompression chamber" of the Satanic temple might be considered a training school for temporary ignorance, as are ALL religious services! The difference is that the Satanist KNOWS he is practicing a form of contrived ignorance in order to expand his will, whereas another religionist doesn't - or if he does know, he practices that form of self-deceit which forbids such recognition. His ego is already too shaky from his religious inculcation to allow himself to admit to such a thing as self-imposed ignorance!
The Satanic Bible" by Anton LaVey (1969)
Book of Belial 3:paragraphs 8-9