Kabbalah su Salmi 112:5

"These are the generations of Noah" (Gen. 6:9). Rabbi Yehuda began his discourse on the verse: "A good man lends with a good grace; he conducts his affairs justly" (Tehilim 112:5). He said that "a good man" refers to the Holy One, blessed be He, who is called 'good', as it is written: "Hashem is good to all" (Tehilim 145:9). And it is also stated that "Hashem is a man of war" (Shemot 15:3). He is gracious and lends to "all" (which is Yesod), to the place that has nothing of its own. That place is nourished by it (Yesod). The words, "he conducts his affairs justly" refer to the fact that it is nourished only according to justice, as it is written: "Righteousness and justice are the foundation of Your throne" (Tehilim 89:15). S(o righteousness, which is the Female Principle, is nourished by justice.)

However, if one studies during the day and he is satiated, he does not have to lengthen his study at night in a way that he cannot wake up at midnight. And “the wise man, his eyes are in his head” (Ecclesiastes 2:14) and will “order his affairs rightfully” (Psalms 112:5) in a way that he will deal with Torah during the day until he is satiated, and in the beginning of the night he will deal with Torah as well so that his soul can elevate by the breath of the Torah, but not to the point that he is satiated so he will not miss waking up at dawn, which is the main time to deal with Torah, as it says “Arise, cry out in the night, at the beginning of the watches [last part of the night]” (Lamentations 2:19).