In the study book of Bei Rav it says that even though the Torah was said from the ‘mouth’ of Gevurah, ELHYM, it was also coming from the mouth of Moses, Zeir Anpin. The Gevurah is the Left column of Binah and Moses was a tool to reveal the Torah in the balance of the Center column.
“וּבַת-כֹּהֵן כִּי תִהְיֶה אַלְמָנָה וּגְרוּשָׁה, וְזֶרַע אֵין לָהּ–וְשָׁבָה אֶל-בֵּית אָבִיהָ כִּנְעוּרֶיהָ, מִלֶּחֶם אָבִיהָ תֹּאכֵל; וְכָל-זָר, לֹא-יֹאכַל בּוֹ”
“’But if a priest’s daughter becomes a widow or divorced, and has no child and returns to her father’s house as in her youth, she shall eat of her father’s food; but no foreigner shall eat of it.”
Rabbi Aba said that the world was created for the Israelites to give them the Torah so they can be purified and achieve righteousness.
A daughter of a priest that comes back to her parents’ home is nourished from her father, the priest. This ‘food’ cannot be shared with ‘foreigners’.
As Israelites souls (daughter of a priest) we must have proper nourishment from the highest level of Light (Priest’s food), Torah. The ‘foreigners’ in verse above are idol worshipers that cannot benefit from the ‘food’ of the priest.
A daughter returning to her father’s house is the aspect of a soul that wasn’t and couldn’t be ‘fruitful’ (no child) outside her true home, and comes back to her roots, with a Light that can nourish her.
The soul of Israelites through the reincarnation process may dwell temporarily in different bodies and lands, but her ultimate place is with the Torah that is the root of all Israelites souls. Those who love Torah studies, primarily through the Zohar, have a strong Israelite soul. Those who are with a soul of idol worshipper, are weak and cannot stay long under the Light of the Torah.
God created the spiritual system and the Torah, so we can get to the point of purity in consciousness and actions to enjoy the great rewards of the future. Before we received the Torah, God told us that it would make us priests and provide ‘food’/Light for the whole world.
“וְאַתֶּם תִּהְיוּ-לִי מַמְלֶכֶת כֹּהֲנִים, וְגוֹי קָדוֹשׁ: אֵלֶּה, הַדְּבָרִים, אֲשֶׁר תְּדַבֵּר, אֶל-בְּנֵי יִשְׂרָאֵל.”
“and you shall be to Me a kingdom of priests and a holy nation.’ These are the words that you shall speak to the children of Israel.”
Daily Zohar # 2991 – Vayikra – How to 'feed' the world