When reading The Zohar, we have to think about the fact that the only thing we lack is the Light of Hassadim. If I look at the same reality that we are in, but in the Light of Hassadim, which emanates from my intention to bestow, then instead of the current reality I will see the spiritual reality.
In order to start feeling the Upper World, I lack only the Light of Hassadim which emanates from me to everything around me. Usually we waste a lot of time, energy, and life itself on completely useless actions that do not depend on us. But the only thing we can do is bring ourselves to the Light of Hassadim so it will manifest inside us, being the quality of bestowal in which the Light of Hochma becomes clothed, the knowledge and attainment of the Creator.
All the actions we make besides attaining the Light of Hassadim, the attitude of bestowal to the environment, evoke only a negative reaction from Above. It corrects us, but through the lengthy path of suffering, eventually returning us to the aspiration of bestowal, albeit by the path of suffering.
Therefore, if a person constantly discerns what is necessary in order to attain this single action that can come from him, the quality of bestowal, it means that he is waiting for salvation. That is exactly what we should feel while reading The Book of Zohar.
Kabbalists have revealed this spiritual reality. So what do I lack to reveal the same thing and see what they are talking about? The only thing I lack is the Light of Hassadim.
From the 2nd part of the Daily Kabbalah Lesson 12/28/10, The Zohar