Answer: The Zohar can work like the “potion of life” or the “potion of death,” and using the Light of the Torah can be good or bad. All that adds strength to our nature can turn out to be useful or harmful, meaning to turn it into the “potion of life” or into the “potion of death.” This is the reason why we always refer to intention (rather than action) as the most vital thing.
We don’t even realize the extent to which we all live in the world of intentions. Sometimes I am repulsed by something, but my attitude changes dramatically when I begin to understand that it was done with a good intention. Has anything changed? Only my perception of the intention that lies behind the action.
Thus, the only difference lies in intention: What exactly do I anticipate from an action? The difference is in using the Light as the “potion of life” or as the “potion of death.” It’s the different between two worlds.
Our advancement happens only within intention to the degree of our ability to share, differentiate, and sense it in order to feel the tiniest fluctuations of our personal intention rather than the intention of our environment.
From the 2nd part of the Daily Kabbalah Lesson 9/27/10, The Zohar