The science of Kabbalah reveals an enormous new world to us, the spiritual world, which includes our entire world of today like a tiny grain of sand in the entire universe. But how can we attain a sensation of the spiritual world? It’s like a baby who has no knowledge or sensations that he can relate to the world around him. But gradually, he accumulates impressions of this world, hears and recognizes sounds, sees images, discerns colors, and feels the difference between cold and hot. He has to learn all of this from the impressions he receives.
At first, for example, he simply develops his senses and learns to discern the presence or absence of sound. Later he begins to discern various sensations in each sense. What makes a developed person different from others is that his senses are able to perceive finer things. To a musician, sounds awaken an entire world of sensations. An artist lives in the world of colors. A writer feels the shade of every word.
But all of this comes to a person gradually. We exist in some kind of reality, which gradually becomes revealed to us. It influences us, makes us progress and forms in us a capability of perceiving it. This is how the material reality, this world, is arranged; and we develop and reveal the spiritual world along the same exact stages and by the same laws.
There is a special book that consistently develops our sensation of the spiritual world in addition to this world. In essence, we are living in one, common world, but relative to us it divides into a part we can perceive and a part that is concealed from us. In order to reveal the concealed part of the world, we must start to feel it in a direct fashion, like babies. This is what the unique book, The Book of Zohar, does for us.