Answer: After the first restriction (Tzimtzum Aleph), the Masach becomes the main part of the work. The Masach is my only concern. It is the place where I always feel myself. Everything other than the Masach are extra conditions meant to support the Masach and to determine its form, its character, and its accurate direction.
My concern is to focus only on the Masach. It doesn’t matter what desires I feel, what light there is, or what is going on in my life because the decision has been made that from now on, I constantly try to resemble the upper. The equivalence to the upper provides the Masach.
All other conditions, both external and internal, whatever they are, accumulate and concentrate into this one concept called Masach. I think only about how I can perform the optimal and maximal action of all possible actions in order to resemble the Creator at any state.
The state itself doesn’t concern me and doesn’t depend on me. Neither does what I feel inside. Nothing! It is only important to understand that I received this from Him. In this state that I was brought to, it is important to perform an action that will make me resemble the Creator; that’s all.
Whether it is in a state of smallness, a state of greatness, or in an intermediate state between the two, it makes no difference since it all comes from Him. I focus all my attention on the Masach.
The Reshimot that are incorporated in the Masach are the data I work with. This is the information about me, about the giver, about my previous state, and about the lower state, about everything.
The Reshimot are the records of all my impressions in the past and in the future. All the data is accumulated in the Masach. My work is to clarify them, to sort them out according to priority, and act according to them in order to resemble the giver.
From the 3rd part of the Daily Kabbalah Lesson 1/18/12, “The Study of the Ten Sefirot”