Another Example
The Flowers Of Guidance Volume One Nine Instructive Steps to Gaining Knowledge Step 4: Light of knowledge
A mechanical engineer learns the general secrets of factories. When he does, he can soon become an expert in the secrets of any factory since the general principles that he learned in college can be applied to other factories as well. Be it a sugar factory, be it a cement factory, or be it a textile factory, those general rules and principles exist everywhere. If one becomes familiar with them, they soon become an expert in the remaining details. Even though there might be some differences in organizational systems and formation between the sugar factory and others, the general principles are similar.