5389. There are bands of spirits wandering about who return periodically to the same places. Evil spirits have a great dread of them because those bands torment them with a particular kind of torture. I have been told that they correspond to the fundus, or upper part of the bladder in general, and to the muscular ligaments leading from there which centre on the sphincter, where a twisting action is employed to release urine. These spirits attach themselves to that part of the back where the cauda equina is situated. Their method of working is effected by rapid movements to and fro which no one can resist. The method involves a tightening and relaxing action upwards, in the form of a cone pointing upwards. Evil spirits who are placed inside this cone, especially from above, are tortured pitiably by the twistings taking place in both directions.