Every science is a language. However, in regular science you explain your attainments on the same level as you attain them (in the same world), whereas using the language of Kabbalah you explain what you attain in relation to the root. This is the difference between regular science and the science of Kabbalah. You record any phenomenon that you study and attain in this world on the same level that you attain and research it. However, in Kabbalah you do not attain matter itself, but its connection with the root. This is the most important thing!
Baal HaSulam writes the following in the article, “The Teaching of the Kabbalah and Its Essence”: …physics is mere knowledge of the arrangements of a particular kind existing in a particular world. It is unique to its subject, and no other wisdom is included in it.
This is not so with the wisdom of truth, since it is knowledge of the whole of the still, vegetative, animate, and speaking in all the worlds with all their instances and conducts, as they were included in the Creator’s Thought, that is, in the purpose. For this reason, all the teachings in the world, from the least of them unto the greatest of them, are wondrously included in it….
The connection with the root is unique to the science of Kabbalah. That is what enables it to include all the other sciences in itself. You can explain the qualities of a certain matter at this moment or the connection between phenomena, but this does not explain the essence of things and phenomena.
From the 4th part of the Daily Kabbalah Lesson on 2/10/11, “The Essence of the Wisdom of Kabbalah”