In a vision, the path to this object is bordered by a rod of iron, and a building full of sinners jeers at those walking the 
In a vision, the path to this object is bordered by a rod of iron, and a building full of sinners jeers at those walking the path. The prophet Lehi has a vision of this object in the Book of Mormon. At the end of Revelation, this object appears on either bank of a crystal-clear river. In Jewish mysticism, the diagram of the ten (*) Sefirot is given the name of this object. It is debatable whether one example of this object was the same as its counterpart, which granted knowledge of good and evil, and whether its environment's two inhabitants ate its fruit. For 10 points, name this tree, which, in Christian tradition, stood in the Garden of Eden.
In a vision, the path to this object is bordered by a rod of iron, and a building full of sinners jeers at those walking the path.
The Tree of Life [prompt on "Etz Chaim" or "(fruit) tree"]