Question: (The Torah, “Exodus,” Truma, 25:10) It says: “They shall make an ark of acacia-wood; two and a half cubits its length…” How can such drawings be so accurate? What is the gold that the crown of gold outside the temple was made of?
Answer: It is talking about the ten main Sefirot each with its own ten Sefirot and then another ten Sefirot in each, etc. It is about how they are divided into certain attributes and discernments and the combination of the connections between them.
There is the still, vegetative, and animate nature, and man—the parts that participate in resembling the Creator. Each part has to be made of its main attributes. A priest, for example has to be married. Certain types of animals have to be kosher, which means that they should have cloven (split) hooves and ruminate.
Why is the ark made of acacia wood or cedar of Lebanon, and why is it covered with gold, silver, and copper? Because those particular materials exist in nature in their natural form in nature; they do not need to be made artificially.
They are used in a particular combination, creating one form or another. It is because you don’t just take a certain attribute, but rather have to change it and to give it a certain form by your action. A greedy irritable person, for example, becomes generous and kind. This means that we should gather all the attributes correctly, since each one should be combined in a certain way with other attributes. Thus the place for the revelation of the Creator is built.
From KabTV’s “Secrets of the Eternal Book” 7/29/13