The name of the Shabbat before Pessach (Shabbat Hagadol) has different explanations. One of the explanations derives from the last verse of the Haftarah telling us that the prophet Eliahu will come before the coming of the great and terrible day of the LORD.
In our Tradition, Eliahu is the a-historical precursor and announcer of Redemption and is supposed to establish peace among nations. Maybe he is the symbol of Hope in a better society. Let us keep him alive.
Shabbat Shalom to all,