Answer: Kabbalah was revealed gradually because this is exactly how the ego develops in humanity. It started out as very small and then Kabbalah began to emerge and develop with the arrival of the great Kabbalist the Ari. This is one point.
Secondly, Kabbalah is not a new science. The first Kabbalah book was written 5,780 years ago. There are more books from about 2,000 to 3,000 years ago. There is a huge body of Kabbalistic work, including contemporary books.
Question: Why has Kabbalah been on hold and not revealed until precisely our time?
Answer: Kabbalah has not been on hold. It is being revealed to humanity only to the extent of humanity’s ability to implement it correctly. Look what happens with the knowledge that is revealed to humanity before it is ready to realize it correctly: we invent atomic bombs and other harmful things.
Whereas Kabbalah is being revealed only to the degree to which humanity can use it without harming others. But the most important difference between Kabbalah and all religious beliefs, views, or anything else, is that it aspires for universal love that we don’t see anywhere else.
We see that religions hate one another, and nations are in a state of mutual hatred, because all other methods and theories are based on egoism. Kabbalah stands apart from them. It encourages love and sees universal love as the result of the corrections made by it. That needs to be studied. We can, of course, dismiss it. However, it is the method of Kabbalah that explains how to rise above egoism, letting us reach love.
Question: What does it mean as Baal HaSulam writes: “Until the world becomes one family”?
Answer: Yes, to a point where all humanity would once again feel as a single nation. Eventually, Kabbalah will bring us to it. The events that have happened in our world in the past 100 to 200 years, and those in our nearest future will show that with absolute certainty. This is the time of the revelation of Kabbalah.
From KabTV’s “Fundamentals of Kabbalah,” 2/2/20