This “Light” is a perception of Hashem, and can be experienced intellectually, as an idea, or experienced as “seeing” it. For example, a person understands the concept of Individual Divine Providence-Hashgacha Pratis. But when something happens in life that a lot of different things come together in the most unexpected way so that you end up with what you need, then you “see” Hashgacha Pratis, in addition to understanding it as a concept. Similarly, the truth of Hashem’s existence is something we understand intellectually, but yearn to “see” and experience. Through our bitterness and pain over the concealment on Hashem, He gives us some degree of “seeing” His Presence and experiencing it.
This causes that Hashem will give the person love of Him in a manner of “אִיש ִיַׁ-my Husband.” Meaning, like it is written (Hoshea 2:18): “On that day you (the Jewish People) will call Me ‘My Husband.’”
The Alter Rebbe takes the verse of Leah’s statement about her relationship with her husband and applies it to our relationship with Hashem. Leah said that because she gave birth to Reuven, Yaakov will fully love her as her husband. The Alter Rebbe takes the word “יֶאֱהָּבַנִּי-he will love me” and interprets it as “will cause me to love,” meaning in our context, causing the person to love Hashem.
Then the Alter Rebbe takes the word “אִּיש ִּי-my Husband” and give it a new reference. The simple meaning is that Leah is saying that now her husband will love her. The Alter Rebbe is interpreting it to mean that Hashem will cause the person to love Him as if He were our “Husband.” The Alter Rebbe continues to explain the word “אִּיש ִּ י” on a deeper level: The deeper meaning of the word “אִיש ִי” is “א ש ַׁ־ַׁש ֶל ִיַׁ מַמָּּש-my very fire.” The simple meaning of “אִּיש ִּי” is “אִּ י ש ש ֶלִּּי-my husband,” here the Alter Rebbe is interpreting is as “אֵש ש ֶלִּּי-my fire.”
