Recently I came across this teaching from Chassidic or Kabalistic works which apparently has something to do with our 'task' in this world:
Hayom Yom: Tackling Life's Tasks; Translated from the writings of the Lubavitcher Rebbe, Rabbi Menachem M. Schneerson
"The Divine service of Jews transforms yesh, the self-centered perspective that pervades our material world, into ayin, G‑dliness".
I also found this teaching:
Hasidic thought follows the kabbalistic understanding of creatio ex nihilo (creation out of nothing, yesh me’ayin) in terms of the emanation of the Sefirot and the universe (of yesh, that which is) from Ein Sof (the Limitless, the Ground of Being), known as ayin (nothingness), because this aspect of deity is utterly beyond all comprehension.
In some versions of Hasidism, notably in Habad, this doctrine sometimes results in a thoroughgoing “acosmism.” That is, from the point of view of G-d, as it were, there is no created universe at all. Since the universe emerges out of nothingness, its nature is to revert to nothingness so that its continued existence is possible only through the supernatural act of G-d that keeps it in being. Suspended over the void, the universe has to be created anew at every moment of time (Tanya, part II, chap. 1-7). Because creation involves the emergence of “somethingness” (yesh) from the divine nothingness (ayin), it is the task of the tzaddik to reverse the process by acknowledging God in all he does and thinks, thus restoring the somethingness of things to the nothingness whence they come (Menehem Mendel of Vitebsk, Pri HaAretz, pp. 3-4, commentary to Genesis 1:16).
Could someone clarify for me: How it is derived from the idea that creation involves the emergence of somethingness (yesh) from the divine nothingness (ayin) that it is our task to reverse this process? i.e. to transform yesh into ayin? And what does this mean?
P.s. are there any good commentaries, explanations (in English) which I could read to learn more?