My Answer: No, we would have no contact with the Light. We need a system that allows us to establish a connection with the Light. We have to thank the Kabbalists for this. Every generation should prepare themselves as a foundation for the next generation. It is similar to layers of culture that are discovered during archeological excavations. In the same way, we constantly add layer upon layer of preparation for future generations. Without it, we are unable to grow.
Before Baal HaSulam, Kabbalah was dispersed throughout various sources. However, he collected and organized everything into one system. A system that is not just a book that is comfortable to read, but an inner system in which we can now receive Light. It is a correction much like the one performed by the Kabbalists at the time of the Talmud about which it is written: “Eat bread with salt and drink regular water.” They united all the souls in such a way that through the general system we can receive Light sufficient for our correction and no longer need to subject our bodies to suffering.
Baal HaSulam performed the same kind of correction. He did not just write books with detailed explanations for us. After all, we read them and don’t understand anything. However, through his compositions, he made it possible for us to unite with the spiritual system and to draw the Light that Reforms. This constituted his special mission. Without it we are unable to do anything.
The Light needs to pass through the system that he built; only then is it appropriate for our souls. We receive surrounding Light through Talmud Eser Sefirot and “The Preface to the Sulam Commentary.” It would not be possible to do this through other works since they lack the order and the system that Baal HaSulam organized for us.
From the 4th part of the Daily Kabbalah Lesson 7/1/10, Introduction to the Book, Panim Meirot uMasbirot