I live in Eretz Yisrael and tonight I was invited to what many chassidim refer to as a "seudas predeh" (or as I somewhat loosely -- or perhaps wrongly "translated" in the title as a "Goodbye Party".)
This often happens here in Israel when a young family move back to America or wherever they might be from.
This person is obviously not leaving the world (chas v'shalom), but leaving what has been his home for years and a kehillah where he has davened.
Where does this minhag come from? What is the point of it? What is the significance?