Siman 531

(88.) Previously he spoke about serving the tzaddik — that the people of the tzaddik must serve the tzaddik in all his needs and do for him all that he would need to do himself. And he said this is alluded to in the verse [Psalms 145]: "The tzaddik of G-d in all his ways" — meaning: when does the tzaddik merit that G-d be in all his ways — the aspect of "In all your ways, know Him" [Proverbs 3]? When can the tzaddik fulfill "G-d in all his ways"? When "and pious in all his deeds" — meaning when...