New information about Solomon’s temple points to a location on the Temple Mount somewhat different than has been commonly assumed. Instead of being where the present Dome of the Rock is, it may have been a little further east. The new proposed location puts the ancient Temple over a large ancient cistern, where water was drawn out for daily purification and washing rituals.
As one can read in the works of Mircea Eliade and others, such as Jewish scholar Jon Levenson (see his tremendous book, Sinai and Zion), the symbolism associated with ancient temples also includes the concept of taming the waters of chaos. Subterranean water beneath the Temple can symbolize primordial chaos conquered by the power of God in the Creation, and also represent the world of the dead. In this ancient paradigm, the temple is the axis mundi, the great axis of the world that joins the realms of the dead, the living, and the heavens. How well that concept fits with the restored LDS Temple, where the baptismal font, the lowest part of the Temple, provides the symbolic subterranean water in a sense, and plays a role in joining the realm of the dead to the living, freeing the dead who accept the Gospel and offering them the blessings of the heavens.