These chapters are full of all sorts of imagery, including the famous vision of dry bones being given flesh and coming to life.  Of particular importance, though, is to note here the prophecy for the reuniting of Israel and Judah.  The kingdoms, if you recall, were originally separated as a result of Solomon's sin.  However, even this would be brought back together as the Lord unfolded His plan for redemption of the nation and for all people through the coming Christ.  God had not abandoned His people then any more than He abandons His people now.  Their time of punishment was soon to end, and His hope was that they would return to Him as He showed His faithfulness to them.