There are two lines, and there is a dispute between them: Each one wants to cancel the other.
Three manners extend from this: 1) One cancels the other. 2) Each one wants to cancel but cannot cancel, so they remain disputed. 3) Peace is made between them.
“Right” is called “wholeness.” In other words, a person depicts to himself that he is the most complete and happiest person in the world because he concludes that he is a simple person who has no advantage over others, but the Creator has chosen only him to serve the King. Although this service is not continuous, but once a month or once a week, when he sees that there aren’t many people who serve the King even once in their lives, this alone gives him vitality. And if he has vitality, he can engage in Torah and Mitzvot [commandments] with joy and increase his good deeds.
However, ascending the degrees also requires walking on the left line, which is Hochma [wisdom], where there is criticism over the acts and the thoughts—whether they are truly in order to serve the King, to bestow contentment upon his Maker, or for himself. At that time, the left wants to cancel the right and go specifically in a manner of criticism. It does not let a person do anything good. It follows that “His wisdom is greater than his deeds.”
However, one should mainly walk on the right line, meaning do good deeds and feel himself as complete, and serving the king. One must believe that everything he does brings contentment to Him.
At the same time, he should dedicate time to walking on the left line, meaning to criticize, but the left should surrender before the right. That is, he walks on the left not because he wants the quality of the left, but in order to improve the right, to show that despite all his criticism and knowledge, he is going above reason, meaning in the “right,” which is called “faith.”
This is called the “middle line,” which decides between the two lines and leans toward the right. This is also called Achoraim [posterior]. Through this unification, one is later rewarded with receiving the quality of Panim [face/anterior] of the degree. At that time there is clothing of Hochma in Hassadim, which cause a Zivug [coupling] Panim be Panim [face-to-face] above, in ZON.