Answer: Our mind power is called Masach (screen). The measurement unit we use is the Aviut (thickness) of the Masach.
Question: Can I correct a certain state through the power of thought and thus impact a certain person?
Answer: Only if you have a Masach with Aviut; the Aviut of the desire is power.
Question: Can an egoistic power of thought be harmful? Is there such a thing as the evil eye?
Answer: It is possible to inflict the evil eye through our mind power, and it is possible to heal. However, the point is not such games. We should understand how we can create positive movement in the world through the tools we were given; the movement of the whole system is called the general soul.
From the Kabbalah Lesson in Russian 1/15/17