Answer: Of course! The Zohar is not a book, but a higher illumination. It is Light that comes to us from the system of souls, the Light filling our souls.
Similarly, who is Rabbi Hamnuna Saba about whom we read in The Zohar? This is a special, great Light and a very high degree. How do I attain him? If I attain a specific degree of connection between the souls, then the degree of their connection, the mutual bestowal among them becomes revealed as Light which is called Rav Hamnuna Saba, and if it happens on a small degree, it is his son. The Light is the degree of bestowal between the souls.
From the 2nd part of the Daily Kabbalah Lesson 1/23/11, The Zohar