Where do the words of this world come from? Why did some peasant who once lived near Jerusalem look at the Mount of Olives and name it this way? It’s because he thought that this name suits it. This desire arose in him from nature, and nature comes from Above.
That is, there is nothing accidental in the words of our world; they all came from Above. This is why Kabbalists can use them for describing the spiritual roots, which is called “the language of branches.” And when we take the names of this world and explain what hides behind them according to their spiritual roots, we see the difference between the worlds. This is how we discover what stands between us and the spiritual world.
A stone of this world and a stone of the spiritual world, a tree of this world and a tree of the spiritual world, a man, a woman, a child, fire, water, this is how I study the difference between the worlds and the form I have to reach.
However, the language of branches is not intended for an ordinary person, but for those who sense the spiritual world. Only they can comprehend what is taking place between the branch and the root, and they pass to each other knowledge using this language. When one Kabbalist describes a certain connection between the roots in the spiritual world and wants to pass this knowledge to another, he relates it in the language of branches.
For the time being, we do not speak this language, but rather use a spoken one. When you will sense spirituality, then by listening to the words of your teacher who is telling you about the spiritual world, you will understand what he means. Or, he will teach you like a little child who is being taught words.
Imagine that you are at the spiritual level together with your teacher, and he points at a certain phenomenon and tells how it is called. Seeing the spiritual phenomenon and hearing its name, you can connect them together, attach the word of this world to the spiritual object. This is called learning the language of branches. A newborn in the spiritual world learns the language of branches much like a newborn in this world learns to speak an earthly language.
And later you will be able to converse with the teacher; you will have an active vocabulary.
From the 4th part of the Daily Kabbalah Lesson 2/14/2011, “The Essence of the Wisdom of Kabbalah”