Full context:   Understanding the sefirot throughout Jewish mysticism is achieved by their correspondence to the human soul. This applies to the outer, Kabbalistic structure of the sefirot. It applies even more to their inner dimensions, which correspond to inner psychological qualities in human perception. Identifying the essential spiritual properties of the soul gives the best insight into their divine source, and in the process reveals the spiritual beauty of the soul. In Hasidic thought these inner dimensions of the sefirot are called the Powers of the Soul (Kochos HaNefesh). Hasidism sought the internalisation of the abstract ideas of Kabbalah, both outwardly in joyful sincerity of dveikus in daily life, acts of loving-kindness and prayer; and inwardly in its profound new articulation of Jewish mystical thought, by relating it to the inner life of man. Articulation of the sefirot in Hasidic philosophy is primarily concerned with their inner dimensions, and exploring the direct, enlivening contribution of each in man's spiritual worship of God. Kabbalah focuses on the esoteric manifestations of God in creation, the vessels of divinity. Hasidut looks at the lights that fill these vessels, how the structures reveal the divine essence, and how this inwardness can be perceived. This difference can be seen in the names of these two stages of Jewish mysticism. "Kabbalah" in Hebrew is derived from "kabal" (to "receive" as a vessel). "Hasidut" is from "chesed" ("loving-kindness"), considered the first and greatest sefirah, also called "Greatness", the wish to reveal and share. The names of the sefirot come from Kabbalah, and describe the Divine effect that each has upon Creation, but not their inner qualities. Hasidic thought uses new descriptive terms for the inner dimensions of the sefirot: These ten levels are associated with Kabbalah's four different "Worlds" or planes of existence, the main part from the perspective of the descending "chain of progression" (Seder hishtalshelut), that links the infinite divine Ein Sof with the finite, physical realm. In all Worlds, the 10 sefirot radiate, and are the divine channels through which every level is continuously created from nothing. Since they are the attributes through which the unknowable, infinite divine essence becomes revealed to the creations, all ten emanate in each World. Nonetheless, the structure of the Four Worlds arises because in each one, certain sefirot predominate. Each World is spiritual, apart from the lower aspect of the final World, which is the Asiyah Gashmi ("Physical Asiyah"), the physical Universe. Each World is progressively grosser and further removed from consciousness of the Divine, until in this World it is possible to be unaware of or to deny God. In descending order: