Eden (Heb.). “Delight”, pleasure. In Genesis the “Garden of Delight” built by God ; in the Kabbala the“Garden of Delight”, a place of Initiation into the mysteries. Orientalists identify it with a place which was situated in Babylonia in the district of Karduniyas, called also Gan-dunu, which is almost like the Gan-eden of the Jews. (See the works of Sir H. Rawlinson, and G. Smith.) That district has four rivers, Euphrates, Tigris, Surappi, Ukni. The two first have been adopted without any change by the Jews; the other two they have probably transformed into “ Gihon and Pison”, so as to have something original. The following are some of the reasons for the identification of Eden, given by Assyriologists. The cities of Babylon, Larancha and Sippara, were founded before the flood, according to the chronology of the Jews. “Surippak was the city of the ark, the mountain east of the Tigris was the resting place of the ark, Babylon was the site of the tower, and Ur of the Chaldees the birthplace of Abraham.” And, as Abraham, “the first leader of the Hebrew race, migrated from Ur to Harran in Syria and from thence to Palestine”, the best Assyriologists think that it is “so much evidence in favour of the hypothesis that Chaldea was the original home of these stories (in the Bible) and that the Jews received them originally from the Babylonians”.
Source: H.P.Blavatsky - The Theosophical Glossary