Answer: If you were in spirituality, then you would actually reveal everything you read about in the book. You would reveal the forces of connection among us, including their might, character, how they operate, and how they unite together into the net connecting us.
You would participate in the net of these forces and its work, in the illumination of the Shechina. You would see how much you are able to take an active part in it, how much you can add to it yourself. While reading the text, you would see how this entire net behaves.
As long as you do not feel spirituality, you have to read these texts hoping that it will become revealed to you. We read the Kabbalistic texts in the quality of Segula (a miraculous quality), and not in the form of facts.
For example, suppose I am blind and I am listening to a physics professor tell me about optical laws. He tells me how a ray of light splits into several colors. Yet, I am just hearing about it. I do not understand what he is talking about, but only hear that these phenomena exist.
I can keep studying this way my entire life, without understanding what it is talking about. However, if I make special efforts and begin to feel the phenomena I heard about, then they become my life. This is called “Taste and see how good the Creator is.” You have to taste it – to receive these Lights and feel their taste.
The real science of Kabbalah begins only after you have this sensation.
From the 2nd part of the Daily Kabbalah Lesson 12/6/10, Talmud Eser Sefirot