My Answer: No, you will not learn anything. However, you will rouse a certain force onto yourself, and this force will influence you, change you, and connect all the different qualities in you to equivalence to nature. To the extent that you become an integral part of nature, make yourself similar to it, and unite with it, you will also understand everything.
Understanding comes after everything, as a result of all the changes and unifications that you achieve. However, by merely reading The Book of Zohar, you will not understand anything. You need to read The Zohar with the intention for it to make you an integral part of nature, to make you in oneness with all of reality.
To the extent that you unite with it, you will begin to feel that you are part of one whole, and from this sensation you will already begin to understand. This is called attainment, the last stage, which you achieve as a result of the unification. This unification with nature is called “adhesion with the Creator.”