Not much has changed, by the way.  But they thought that, it must be because you are possessed So if you are possessed by an evil spirit causing neurologic or psychiatric problems, then the way to treat this is, of course, to make a hole in your skull and let the evil spirit escape.
今とあまり変わりませんね しかし彼らの考えは 神経・精神病の原因は 悪霊にとり憑かれることで 神経や精神に問題が生じるので 治療のためには 頭蓋骨に穴をあけて悪霊を 追い出さなければならない