We have to rise from the world we exist in up to the Upper World. This is the only purpose of our world. People who have revealed the path to the Upper World are called Kabbalists, starting from Adam HaRishon and on. They discovered that only the Upper Light can draw us into the spiritual world and help us achieve correction. Only the Upper Light is capable of correcting us and raising us along the spiritual degrees.
We can draw this Light by belonging to its system. Currently we do not belong to it because our nature is opposite to the Light. Our nature is reception, while the system is giving.
In order to draw the Light of correction, an “adapter” was created, or a buffer between the two systems. This buffer is Kabbalah books that connect us with the souls of the Kabbalists who wrote them. When we read these books with our “material” eyes, we unconsciously connect our souls (or the embryo of the soul that exists in us) to the soul of the author, and through his soul, we receive an illumination.
Some Kabbalists wrote books for each other, describing the Upper System in order to perfect their attainment and give joy to the Creator, or in order to prepare the Upper World to accept the souls that will later ascend to it. Other Kabbalists wrote for us, those who exist in this world, but they used four different languages.
Three of the languages – the Mikra, Halacha, and Hagaddah, do not allow us to adhere to the Upper Level. They can only be effectively used by people with a particularly refined soul. In addition, because we are living in a special time, we now need a different kind of language; the only language intended for our generation is that of Kabbalah. Only it can help us draw the Surrounding Light and ascend.
Moreover, out of all the Kabbalists who wrote in the language of Kabbalah, we single out the Ari and Baal HaSulam. Their language is most appropriate in order for us to find the connection with the Upper Level. The effect of their texts on us is the strongest, since the Surrounding Light that comes from their books is the most appropriate for our souls. So, of all the sacred books, the only ones that suit us are the books of Baal HaSulam, who adapted Kabbalah for our souls.
Besides this, there is The Book of Zohar, which is absolutely unique. It isn’t even a book, but a tool we can use together with the commentary of Baal HaSulam, who wrote it specifically for us. Besides these books, we cannot establish any contact with any of the other sacred books. Although they are sacred (meaning, they talk about the Upper World), they cannot help us correct our souls and realize the purpose of our existence.