Just as if a person is imprisoned and he hears news of his release he is joyous IN prison, so to, when we truly realize that light follows darkness, the messianic era follows exile, as it did in all of Jewish history and as the Lubavitcher Rebbe is predicting and has claimed has already begun! (seeing that messianic miracles such as the ingathering of the Jewish people to Israel has begun, with Russia opening its Egyptian like iron-curtain and the Jews going peacefully to Israel- it is actually a greater miracle than leaving Egypt when the Egyptians had to be destroyed for here the Egyptian captors became friends and people who assisted the Jews!!!!