The Zohar: The wisdom that a person (every person without exception) needs is to know and see the Creator’s secrets, to attain who he is, how he was born, where he came from, where he is going, how he can correct himself, and what awaits him when he appears at the court of the world’s Ruler.
We have to attain knowledge, as it is written, “And Adam knew Hava.” Knowledge is attained when you unite with the Creator, thus uniting the only two things in existence. Thus, attainment or knowledge is formed when the Light of Hochma clothes into the Light of Hassadim – into one’s corrected desires (Kelim). This is the true unity.
When a spiritual Partzuf receives Light inside, this Light is called the Light of Knowledge. This is both wisdom and mercy, the Light of Hochma and the Light of Bina, the Light of reception and the Light of bestowal united together.
If I want to include my soul in Malchut – the sum of all the souls, the only created creation, known as the soul of Adam, then my desire to be together with everyone makes me part of Malchut. Malchut then raises this desire to the level of Daat (knowledge), and then Aba and Ima (Father and Mother, Hochma and Bina) give me this knowledge. This is how the Upper Mechanism operates.
(From a lesson on The Book of Zohar, the chapter, “The Wisdom That A Person Needs”)