Just reading The Zohar brings many results; it evokes various phenomena and changes in a person. A person does not understand what he reads, but he tries to understand it, driven by his nature, even though from the point of view of Kabbalah this is not necessary at all. He may read it with the right intention or one that is not so correct.
In any case, the book works on him, influencing him so he advances. He cannot avoid feeling the changes inside. He should only keep returning to this book as often as possible, read it every chance he gets, and stay connected to it in some way.
Then he will see that this book is built in such a way that it creates for him a picture of reality parallel to his current reality, and he starts to slightly shift between them. Instead of the superficial story he imagines something beyond this reality. That is how The Zohar works inside a person, creating new qualities of perception inside him.
From the 2nd part of the Daily Kabbalah Lesson 12/29/10, The Zohar