The Zohar, Introduction, Chapter “Lock and Key,” Item 42: That carving that was engraved in Bina was engraved and hidden in her, as one who hides everything behind one key, and the whole of that one key is hidden in one palace. And even though everything is hidden in that palace, that key is the most important because that key closes and opens.
It is a great question and a great mystery: How is the spiritual system organized in order to correct the egoistic desire, which is opposite to the Creator in every way?
Two absolutely opposite forces, Bina and Malchut, united under the influence of a third factor, the intention. Thus, they built a system that really is able to facilitate correction with the help of the forces of reception and bestowal, producing an intention in the lower ones.
This mechanism is in the three upper Sefirot of the world of Atzilut, whereas the lower seven Sefirot are operated by the lock and key. The system is ready to be used: If we activate it, it will influence us. We do not feel how its Lights influence us, but in the meantime they descend, already organized in the right combination. They are what changes our desire so it reaches equivalence with the intention.
The Book of Zohar explains the secret of the upper system that connects the forces of the Creator and creation in order to make us similar to Him. We do not know how the process of change takes place in us, and thus we study its mechanism as a “miraculous quality” (Segula). More and more we come to understand that we do not understand anything. We grow more and more disillusioned with our own forces and not seeing any way out, we put our hopes in the upper system, and then on the contrary, we rejoice about this dependence.
Finally, we gradually begin to be included in the system. We are ready for it to make all the necessary changes in us in order to change us so we match it. If a person expresses willingness to do this, the system begins to influence him.
In this way, the first action from our end is to bow our heads. Then the upper system literally “engraves” its form in a person and he becomes similar to the Upper One.
From the 1st part of the Daily Kabbalah Lesson 12/21/10, The Zohar