Havdalah/הַבְדָּלָה is a Jewish religious ceremony that marks the symbolic end of Shabbat and holidays, and ushers in the new week. In Judaism, Shabbat ends—and the new week begins—at nightfall on Saturday. Havdalah may be recited as soon as three stars are visible in the night sky.
An important part of Havdalah, is a special box filled with fragrant spices. It doesn't matter which spices are used so long as they give off a sweet smell. Cloves and allspice are common choices.