Bereshit A: Chapter 39
The firmament that divides and unites

All the worlds were created with boundaries, and these boundaries are reflected within the human body. For example, reasoning takes place only within the boundaries of the head. Each of the Ten Sfirot represent domains of particular spiritual forces. Human behavior should also reflect and respect this idea. The ego's natural tendency is to penetrate another person's boundary. The effect is a volatile combination of spiritual energies, which is the source of conflict. The benefit derived from this section of the Zohar awakens our tolerance and respect for others, and an awareness of the need to remain within our own boundaries.