This wisdom is very simple because it is based on the interaction of two forces: the higher force of bestowal and love and the lower force of egoism, of reception. There is nothing else.
The upper force (the Light) controls the lower force (desire), and everything that happens in the wisdom of Kabbalah is realized between them. The lower force is generated by the upper force and is called Yesh mi Ayn (existence from absence). It is just like mathematics in which there is zero and something different from zero—this is the start of science. It is the same thing here.
The Upper Light acts upon and influences our desire, which is found fully under its control. We are desire: each one of us individually and all of us together.
We are not even conscious of how the Light turns us and we think we do everything ourselves. But, in fact, each one of us is simply a small device. We have the opportunity of evoking the additional influence of the Light. To the degree that we attract it to develop wisely, we have an understanding of how the Light influences us and carries out particular actions in us. We begin to study this and thus we manage both it and ourselves.
About this it was written, “My sons have defeated me” (Baba Metzia 59b).
From the Kabbalah Lesson in Russian 8/21/16