If one kept assimilating spiritual stoves even after that, there could be complications for his body. Only with a very deep understanding of spiritual stoves, and in particular, a perfect understanding of the properties of his own spiritual stoves, was it possible for a human to wield four or even five spiritual stoves.
In the history of the Temple Alliance, there existed some past records of powerhouses who fused with a particularly high number of spiritual stoves, and all had left significant traces in history. However, even more records described cases of an excessive number of absorbed spiritual stoves negatively influencing their wielders lives. To really absorb more spiritual stoves, there existed another method, and that was to fuse spiritual stoves with each other. Fusing already assimilated spiritual stoves would lessen the number of spiritual stoves in one’s body, and thus create more space available to absorb other spiritual stoves.