The most important thing in studying Kabbalah is our feelings. It is impossible for us to reveal a spiritual impression within our external, earthly senses. It can only be felt within our internal vessels of the soul (Kelim).
Kabbalah books use the language of branches, where each word points to and is connected to its Upper, Spiritual Root. Each spiritual root has its corresponding branch in our world; however, the related word itself isn’t able to convey a feeling. This is because we actually need to be in the feeling itself.
A word represents a vessel with its fulfillment. This is the skeleton of the Kli, meaning a screen and the Reflected Light, and a state inside it which is the four-letter name of the Creator, HaVaYaH.
We build words and sentences from “pieces” called “Taamim” (tastes), “Nekudot” (the points under letters), “Tagin” (little crowns above letters), and “Otiot” (letters). This enables us to somehow describe spiritual states, connections, relationships, and the entire process of transitioning between states.
However, we cannot convey the states themselves because each of us has a unique vessel of comprehension. The only thing we can convey to one other is the external information about the preparation of the spiritual vessel and the level of connection between forces. Yet we are unable to convey actual feelings. Therefore, each of us must internally “visualize” (feel in his heart) the actions that are described by words.