Baal HaSulam speaks about the wisdom of Kabbalah as being about “scientific research on an experimental basis” (in the article, “The Peace”), for this is correct, this is truly so. The wisdom of Kabbalah has the same approach as every science in this world. What is different is the subject that I investigate and the tools that I use. But, the general rules and principles are identical, and the main one being: “A judge only has what his eyes see.” (Baba Batra 131a)
Someone could come and persuade me that red is black. But I see that this is red, and so I write in my research that it is red. This means that I believe only what I see. One researcher says one thing, a second says something else, and eventually this is compiled into some kind of knowledge that everyone accepts. In principle, all of science is based upon statistical data. This approach testifies to conclusions on an experimental basis making it possible to gather all of the data and come up with some kind of general rule.
But in the wisdom of Kabbalah, there are no statistical methods where one scientist does many experiments and eventually decides that this seems to be the result. If some data is discovered by a Kabbalist, this is already an absolute fact, according to his Kelim and his level.
This is even though the next Kelim and level will reveal this as having been a mistake and the truth will be revealed. And then in the next Kli and level, this will be revealed as a mistake and the next as truth. This is always what happens during the transition from level to level.
So there is no absolute truth, except for what you are investigating at present. You investigate the Creator as an absolute, until He is revealed.
Question: You say that the wisdom of Kabbalah is based upon personal experience. So what does “faith in the sages” mean in their attainment?
Answer: This is what is accepted in any regular science. If you are the student of a great scientist, then they respect you too. You already belong to his school. This means that it is clear who you are, meaning who formatted you, who made you a scientist. This is called a teacher.
And in the wisdom of Kabbalah this is even more important, for the student receives all of the Light, all of the power from above to below through the teacher, and that is always how this continues.
From the 1st part of the Daily Kabbalah Lesson 8/27/14, Writings of Baal HaSulam