What Jason said was an explanation of a magical proverb—magical notes could only be used as a reference for learning.
Mages would all write down their cultivation experiences, especially the ones that were important. However, only the things that were confirmed would be written into books. Notes were the accumulation of scattered pieces of knowledge. Some might not necessarily be accurate or suitable for every mage.
The master and disciple pair began to study the blueprints on an even deeper level. Saleen was unable to think of ways to modify the blueprints, so he focused on learning from his teacher's design experience.
The higher Saleen's level became, the more he felt that Jason was inconceivable. Many predecessors had mentioned theories that had never been practiced, yet Jason was able to realize the theories and even draw them out on blueprints .