“Why was this so much more effective and efficient than the other memory stone techniques I’ve studied?” <Spells,> I corrected him, getting an eye roll in return. <If you want to know why things work correctly, use the words I use. The reason it was better was that I know exactly what needed to be done, and this was tailored directly to your meridians. Using someone else’s spell—that they created for themselves—will always be inefficient.>