“טֶרֶף, נָתַן לִירֵאָיו; יִזְכֹּר לְעוֹלָם בְּרִיתוֹ”
“He has given food to those who fear (Awe) Him; He will remember His covenant forever”
“Those who awe him” are the Tzadikim who wake up at night to study and awaken the Shechina with them, as we read in Proverbs 31:15
“וַתָּקָם, בְּעוֹד לַיְלָה–וַתִּתֵּן טֶרֶף לְבֵיתָהּ; וְחֹק, לְנַעֲרֹתֶיהָ”
“She rises also while it is still night And gives food to her household And portions to her maidens”
When a person wakes up at midnight to study Torah, The Shechinah wakes up with him to draw Light of Chokmah for that person that becomes her household.
The Zohar mentions in many places the power of getting up after midnight to study Torah. The spiritual reason is that after midnight the Light of Chessed is increasing and the negative side begins to leave. The study creates a bigger vessel for the Light of the day and when the Light of Chassadim increases, we can elevate our prayers higher with the Light of Chokmah.
Daily Zohar # 2123 – Emor – Get up for ambrosia