Just as we proclaim the entrance of Shabbat by making "Kiddush", so too we mark the exit of Shabbat with "Havdalah". The word Havdalah means to differentiate, to distinguish. The entire ceremony is to distinguish between the Shabbat that we have just experienced and the week that we are about to enter.
Three blessings are said:
1. The wine (a symbol of joy). We take pleasure in what we have accomplished and hope that it will continue to grow into the week.
2. The spices, whose fragrance we inhale to comfort our soul at the loss of Shabbat.
3. The flame, which symbolizes light and darkness and the ability to see the difference in a very deep way.