88. דָּבָר אַחֵר וְיֹצֵר רוּחַ אָדָם בְּקִרְבּוֹ – בְּקִרְבּוֹ שֶׁל אָדָם מַמָּשׁ. מִשּׁוּם שֶׁכַּאֲשֶׁר נִבְרָא הָאָדָם וְהַקָּדוֹשׁ בָּרוּךְ הוּא נוֹתֵן לוֹ אֶת נִשְׁמָתוֹ וְיוֹצֵא לָאֲוִיר שֶׁל הָעוֹלָם, אוֹתָהּ הָרוּחַ שֶׁבְּתוֹכוֹ לֹא מוֹצֵאת גּוּף לְהִתְפַּשֵּׁט בְּתוֹכוֹ, וְעוֹמֶדֶת בְּצַד אֶחָד בְּתוֹכוֹ.
89. וּכְשֶׁאָדָם מִתְפַּשֵּׁט גּוּפוֹ, אוֹתָהּ הָרוּחַ מִתְפַּשֶּׁטֶת וְנוֹתֶנֶת בּוֹ כֹּחַ. וְכֵן כְּמוֹ שֶׁהַגּוּף מִתְגַּדֵּל, כָּךְ הָרוּחַ נוֹתֶנֶת בּוֹ כֹּחַ שֶׁיִּתְחַזֵּק הָאָדָם עִמָּהּ, וּמִשּׁוּם כָּךְ יֹצֵר רוּחַ אָדָם בְּקִרְבּוֹ מַמָּשׁ.
“מַשָּׂא דְבַר יְהוָה עַל יִשְׂרָאֵל נְאֻם יְהוָה נֹטֶה שָׁמַיִם וְיֹסֵד אָרֶץ וְיֹצֵר רוּחַ אָדָם בְּקִרְבּוֹ.”
“The burden of the word of YHVH concerning Israel. Thus declares YHVH who stretches out the heavens, lays the foundation of the earth and forms the spirit of man within him,”
Rabbi Shimon says that we can understand “forms the spirit of man” but what is the meaning of the addition “within him”. He explains that the secret is in the two sides, Yessod and Malchut. From the Garden of Eden, Binah comes out the river that brings souls to Yessod and from Yessod to Malchut. “forms the spirit of man” is the aspect of Yessod and “within him” is the aspect of Malchut where the souls form into existence.
It is like a woman receiving seed from a man and then a baby is formed inside her with the support of the spirit until he is in a complete form and can come out to the world. This is a ‘burden’ for the Israelites.
Another explanation is that the spirit is formed inside the body, not at the level of Binah. The Holy One Blessed be He brings the soul into the body and then the body comes out to the world. At this stage, the spirit doesn’t have enough room inside the body and it stands on the right side of the body.
As the body grows, the spirit spreads inside it and gives the body strength during the growing process. That is the aspect of “the spirit of man within him”
The sages teach us that there are three partners in the process of creating a man in this world. The first two are man and woman that form the physical body. The third partner is the Holy One, Blessed be He that brings the soul (Ruach and Neshama), wisdom and the senses of the body.
The father and mother are important to build us but they are temporary. Only the third partner, the Holy One, can support us through our entire life and beyond.
The original text from the Talmud (Translation source: https://www.sefaria.org/Niddah.31a.9?lang=bi&with=all&lang2=en )
The Sages taught: There are three partners in the creation of a person: The Holy One, Blessed be He, and his father, and his mother. His father emits the white seed, from which the following body parts are formed: The bones, sinews, the nails, the brain that is in its head, and the white of the eye. His mother emits red seed, from which are formed the skin, the flesh, the hair, and the black of the eye. And the Holy One, Blessed be He, inserts into him a spirit, a soul, his countenance [ukelaster], eyesight and hearing of the ear, the capability of speech of the mouth, the capability of walking with the legs, understanding, and wisdom.