In this amazing Torah, Rabeinu explains why one must go visit the tzadik in person rather than just listening to his teachings through his students or reading his books.

Rabeinu goes on to explain how one is able to refine his face through perfecting the Holy Tongue/Lashon Hakodesh, rectifying the covenant, elevating Aramaic, doing Shnayim Mikra, having fear of G-d, and finding/receiving the illumination from the letters that exist within every single thing.