...for everything is only one system and one single existence of a creation... For in accordance with the overall purpose as we have explained it, we can call everything that exists from the world of Nekudim and below one single existence such that all the different levels that we will discuss are nothing but parts of this overall existence...that completes the revelation of the unity... For all existence in all its parts is necessary in order for the Supreme Unity to be revealed to perfection....and glory of Eyn Sof blessed be He. For this is the definition of this entire matter: it is an existence made for the glory of Eyn Sof, blessed be He, whereby to reveal the glory of His unity.
Eyn Sof Speaks for God
Kalach Pitchei Chokhmah 39:18