However, once reason is in possession of this increase, it will as speculative reason (and, in fact, only to secure its practical use) proceed negatively with these ideas,.e., not expanding but purifying, in order to forestall on the one hand anthropomorphism as the source of superstition, or the seeming expansion of those concepts through supposed experience, and on the other hand fanaticism, which promises such expansion through suprasensible intuiti or through feelings of that sort.