When Moshiach will come (speedily in our time, amen), then we will truly long for the days of the exile. Then we will truly feel distress at our having neglected working at our service of G-d... These days of exile are the days of serving G-d, to prepare ourselves for the coming of Mashiach, speedily in our time...
Rabbi Sholom DovBer of Lubavitch (1860-1920)