Baal HaSulam’s article “The Teaching of the Kabbalah and Its Essence,” section “Spiritual Expressions”: The spiritual has no image, hence it has no letters to contemplate with. Even if we declare in general that it is Simple Light, which descends and extends to the seeker until one clothes and attains it in the amount sufficient for His revelation, this, too, is a borrowed expression. This is so because everything that is called “Light” in the spiritual world is not like the light of the sun or candlelight.
For a person who does not yet perceive spirituality, spiritual concepts are a total jumble of abstract words. He is like child who doesn’t understand the meaning of the words and simply repeats after adults. And when you reproach him with “What have you done?” he cheerfully echoes, “What have you done!”
In other words, we do not understand the spiritual phenomena the words reflect, and like children repeat the words after the Kabbalists. Yet, gradually we have to approach their true meaning and feel what is hidden behind these words.
All spiritual concepts express a desire and the sensations within a desire since nothing else exists in the whole of reality. There is a desire (spiritual vessel) and something that enters it. The impression within a desire is called “the Light.”
Desire is divided into five levels: Keter, Hochma, Bina, Zeir Anpin, and Malchut. Accordingly, we reveal within desire five types of the Light: Nefesh, Ruach, Neshama, Haya, and Yechida. The sum of these five Lights and five desires defines the “name of the Creator,” meaning someone who influences me. The Creator is the one who created desires in me and gave me screens for them. He is the one who arranged everything in a manner that I feel His impact the way I do. He did everything. All I do is feel the consequences of His actions.
Therefore, all I perceive is called “the work of the Creator.” I call Him by the name that is instigated by the sum of my desires and Lights that I feel in them, that is, by the impression I receive. This is how words are formed in spirituality.
We only need to understand ourselves, and then we will reveal the Creator within us. This is why we call Him “Bo-reh” (come and see). The name of the Creator is me sensing His property of bestowal appearing in me. At first, we, like children, repeat vague words after Kabbalists: Keter, Hochma, Bina, AB, SAG, and so forth. Eventually, however, we will have to attain their meaning and begin sensing them.
From the 4th part of the Daily Kabbalah Lesson 8/6/10, “The Teaching of the Kabbalah and Its Essence”