The wisdom of Kabbalah speaks solely about the desire. As for the Light, there is nothing much to say. It is static and exists at absolute rest. It only bestows and has only this single property of bestowal. If you wish to receive from it, then your actions must be similar to it. The Light doesn’t change; rather, it is your desire that causes it to act upon you.
It is similar to a source of energy. I can come closer to it or move away, approaching it from one or another direction. As with the sun, we can be burned by it or use it for our benefit. And like the sun, the Light is absolutely constant. You can pray or scream to it, but it will not change.
All transformations take place solely within you, regardless of whether you lament or give thanks. In accordance with your changes, you receive different results from its effect. The Light doesn’t change. You discover a fixed, motionless field. To the extent of your inner changes, you discern how to feel its various states. And yet, it is you who experiences the differences, whereas the Light remains the same.
The Light is like the sun that never ceases to shine. You may use its energy as you please: to heat, to cool, and so on. The energy itself has no form, and you are the one who defines it.
So it is with the Creator: “Good Who does good to the bad and the good,” to everyone who desires it. Does He do good to the bad as well? Yes, He does. However, since their properties are inverse (opposite) to those of the Creator, then to the degree of their incompatibility with Him they receive blows instead of good. This helps them to realize the evil of egoism and gradually changes them.
However, there is a better option: to receive instruction on the correct use of the Light. Accordingly, Kabbalah allows us to change ourselves under the effect of the Light, quickly and easily.
From the 4th part of the Daily Kabbalah Lesson 9/20/10, “600.000 Souls”