And the Six Directions (Zeir Anpin) did not turn to Malchut, because they did not receive delight. Although Malchut too already existed as one of the Sefirot, she did not arouse favor and delight because her structure was still deficient.
But when Yesod came in the mystery of MaH, she was then completed... For in the Sefirot of MaH it was included as part of the governmental order that Yesod should radiate in Malchut. We thus find that the governmental order is such that all the structures and worlds are in the category of Malchut as already rectified through Yesod (i.e. the exterior is united with the interior), and thus the building of Malchut is complete. For this is what causes all the openings and flows of influence.