“This put in the center of the kabbalistic worldview a powerful concept of interdependence between man and God, in which the commandments were the instruments used by man in order to influence the processes of the divine world, and ultimately shape his own fate.”
“The mythical processes that dominate this interaction are described in the Zohar and later works as being based on one dynamic aspect of the divine world … usually called the shefa, the flow of divine spirituality from the extreme, highest stages in the divine world down to the lower divine powers, and then to even lower realms, those of the archangels and angels, and finally the material world and to human beings. This divine flow is the necessary sustenance of all existence, even of the divine emanations themselves. Nothing can exist without deriving spiritual power from this divine flow.”
–Joseph Dan, Kabbalah: A Very Short Introduction, 2006, pp. 54-5.