The aspect of “my Husband ‘יִל ָּוֶהַׁ-will join’ with me” is what we say in Emes Vayatziv (the blessing after Shema): “this matter [that we have just said in the Shema] is true and certain etc.” which is referring to the Torah (which we accept to fulfill in the Shema prayer), since its source is exceedingly exalted, but it descended and became invested in physical matters (of mitzvah performance).
Therefore, “the Torah is compared to water that descends from a high place to a low place” (Taanis 7a).
Water flows down and is the same substance at the lowest point of its descend as at the highest point of its origin. So too, the Torah descends from Hashem’s Wisdom in Atzilus and becomes invested in teaching us how to fulfill mitzvos physically, and is the same essential Wisdom of Hashem.
This is what a person should take to heart:
Even though it’s true that I am not deserving by myself to spiritually ascend and become enveloped in the Light of Hashem, and to return my Divine soul to Hashem from below to Above, to reunite it with its source in Hashem who brought it into being, for (Tehillim 24:3) “who can ascend the mountain of Hashem?”
Nonetheless, Hashem’s Infinite Light is by itself automatically everywhere, including extending down to the lowest levels, and dwells and is revealed in the Torah, so that Hashem’s Oneness as it is experience Above (in Atzilus) is revealed (through the Torah) below in this world just as it is revealed Above.
Because Hashem’s Light is “Infinite” it is automatically everywhere all the time. The only problem is that we do not see this Light in the physical world as much as it is perceived in the Higher Worlds. His Light becomes concealed through the order of Hishtalshelus of Worlds, until it comes into this world very concealed. However, it is most definitely present and exists here in the physical world just as it exists in the World of Atzilus.
Now, through the study of Torah in the world we can bypass the concealment on the Infinite Light and reveal it. By revealing the hidden Infinite Light, we also reveal Hashem’s Oneness, which is experienced in His Infinite Light.
