Siman 514

(71.) I heard in his name that he told of several great true tzaddikim. And he said this one has somewhat the power to lead the world — only the deficiency is that he is not of distinguished lineage. And similarly he told of other tzaddikim who cannot lead the world. He answered and said that the matter is like what is cited in the Midrash [in the Introduction to the Zohar] regarding the letters at the time of the creation of the world — that the letters came before Hashem Yisburach and each wanted that He create with it...