This effort (elevating the world from itself) is ”Dira BiTachtonim”; It is corroborated by the Midrash ”Bmi Nimlach biNishmoseihen Shel Tzadikim”. It explains the Possuk ”Yonasi” (Neshama) ”bichagvei haSela” (hardness rooted in Tohu- the source of the physical world and Klipa) ”BiSeser HaMadreigos ” (It’s success happens as a total surprise) ”Hareini es Mareich” (It allows seeing G-D from the bottom).pages 351-3.
