Though initially thought to solely possess the power to control the boundary of the two contravening existences, that of Shinigami and Hollows, this was proven incorrect. Rather, the Hōgyoku's true power is the ability to absorb the desires of those around it and manifest them into reality. However, this power is not without limitations. The Hōgyoku itself is merely a guiding force - it can only manifest the desires of those with the strength to carry them out.