If the will to receive acts without restrictions, it is regarded as “a circle.” If the will to receive establishes the order of importance in relation to bestowal, the Creator above and itself below, then it is called a “line.” The circle is the fully corrected desire that has no restrictions because everything is corrected, or this is the state of desire before correction (without restrictions). This is why our world is regarded as round: The will to receive acts as it pleases.
Our work is to perform actions in a line. It means that, in the work related to the goal, I not only utilize all my qualities, but I also organize them correctly. This inner order is called the line that measures equivalence between the desire and the Light. In accordance with this equivalence, the will to receive can illuminate as the Light, and the Light is the appearance within the desire.
If there is no oil in the lamp, it will not light up. The wick is a kind of measure of the equivalence of the oil or wax to the flame. After all, nothing can start burning without the fueling matter. There has to be a vessel that contains the Light within itself. What the Light inside me is, I don’t know. The Light is the Kli (Vessel) that has equalized itself with the Creator. To the degree of this equivalence, it illuminates, and we call this phenomenon the Light.
So far, I am only matter, oil or wax, and there is no Light in me. However, if I become a wick, I will illuminate; I will feel the appearance of the Light within me. In order to equalize my qualities with the Creator’s, I must construct a line, and to accomplish this, I am given the group.
From the 3rd part of the Daily Kabbalah Lesson 10/22/10, “Preface to the Wisdom of Kabbalah”