Musar על חגיגה 24:3

We therefore find the "crown" of Torah and the "crown" of Priesthood combined within one person, Samuel, all for the sake of the "crown" of Torah. Joseph represented the "crown" of Torah as we have pointed out on page 306. The pillar the world rests on is called צדיק; Joseph, universally renowned as יוסף הצדיק is that pillar. The righteous person is the emanation יסוד which leads directly to the emanation מלכות. All the forces, the influences found within the various emanations are channeled to the emanation מלכות only after having passed through the emanation יסוד. All this has been described in Pardes Rimonim in the chapter called צינורות. The emanation מלכות has to be perceived as the מנהיג, guide of the physical universe, acting on behalf of the various other emanations in the name of the אין סוף, G–d Himself. This is the reason it is called מלכות עולם, kingdom of the universe. The pillar which keeps this world going is the צדיק, i.e. the צינור, pipe, which leads from יסוד to מלכות. We derive the "crown" of מלכות, Royalty, from the attribute of מלכות as well as the Holy Temple, the היכל השם, the site of the "crown" of Priesthood. Joseph was the ruler who repaired many of the shortcomings in the world.