The Sabbath is neither black nor white but a highly colourful affair. Sex is used as the medium for a magical act, and for a divertive conation on a mass scale. It is the death of posture formula applied en masse, but instead of being rehearsed astrally it is enacted physically for the generation of great
power.
This, when released, is diverted from its ordinary object and directed toward the fulfilment of the mass desire. The latter would vary, depending on the pre-arranged objective of the coven or assembly concerned.
It is not merely a matter of erotic satisfaction, though this is incidental. The sensualist is made detached, disciplined, until later and final sublimation. His entire training is submissive and obedient, until he can transmute, control and divert him or herself where desired, by cold amoral passion. The witches take the active part throughout; hence the symbolic levitation by besom [broom] handle.
The witches usually engaged in such rites are old, grotesque, and libidinous, and are as little sexually attractive as the dead; nevertheless, they become the sole vehicles of consummation. This is necessary for the transmutuation of the personal asthetic culture.
Perversion may also be used to overcome moral prejudices and conformity instilled by wrong upbringing, or a society pernicious to the heathy development of the individual. Mind and desire must become amoral, focussed, and made totally acceptive, so that the Life-force is free of inhibitions prior to ultimate control.
The Sabbath is thus a deliberate orgy for the purpose of exteriorising a latent wish. It is the great realization of the autistic image; the scientific extrusion of thought and its embodiment as objective entity, tactual and visul to all present. In a word: the materialization of wishful thinking.
By the 'Sabbath', Spare is not referring to the judiac faith, rather a witch's 'sabbat' - from mediaeval demonology, an event where a nocturnal assembly would occur, and demons and sorcerers were thought to celebrate their orgies.