Answer: There is nothing in our world that does not have a spiritual root, otherwise the object or phenomenon would not exist. The forces that came down from the spiritual world, from the upper system of governance and integration of forces, gradually materialized and formed various objects in our world.
That is why it is written: “You haven’t a blade of grass below that has not a fortune and a guard above that strikes it and tells it, ‘Grow’!” This is obvious.
Upper forces that come down from the world of Infinity through the worlds of Adam Kadmon, Atzilut, Beria, Yetzira, and Assiya reach our world and materialize here.
However, if we are talking about the upper root, in regard to its branch in our world, then it is difficult to explain anything because the system is completely confused. For example, how can you relate a cup or a human hand to an upper equivalent?
Moreover, our world has no such equivalents! It is merely the forces that depict them in our consciousness, in our perceptions. Although, we think that they are material objects, they are illusions.
From the Kabbalah Lesson in Russian 7/9/17