Likutei Moharan 35:6/ליקוטי מוהר"ן ל״ה:ו׳

16. And there is <also> sleep which is an aspect of faithful business activity, which is also the Torah’s plain meaning. <And so> when a person conducts his business activities faithfully, his mentalities/soul then enter into faith, in the aspect of “They are renewed every morning.” They are renewed there and revitalized from their exhaustion.

2This is as our Sages taught: Anyone who seeks wisdom should engage in monetary law (Bava Batra 175b). That is, one who wants to renew his intellect/soul should engage in monetary law—i.e., faithful business activity. For someone who conducts his business activities faithfully is certainly engaged in monetary law, because all monetary laws are connected to business. For it is impossible to conduct one’s business activities faithfully unless one is fully versed in monetary law, lest one make mistakes in these matters.

3{“She is like a merchant fleet; she brings her food from afar” (Proverbs 31:14) . } And this is an aspect of “She is like a merchant fleet.” That is, through business activity/Torah’s plain meaning “she brings her food from afar”—<i.e., he draws> new intellect from the Light of the Face. For the intellect is called “far away,” as is written (Ecclesiastes 7:23), “I said I will be wise, but it was far from me.”