Daf Yomi - Yoma 73- Lekavod Shabbos

The Gemara states that in scared matters we elevate but do not lower. At the onset of Shabbos, one attains a neshama yeseira, an extra soul. When Shabbos ends, the neshama yeseira departs from a person. Although we always elevate in sacred matters, we must return to the mundane of the weekday. Yet, our consolation is that we always ascend in holiness, and when the following Shabbos arrives, we once again attain the neshama yeseira. Certainly on Shabbos itself one should constantly be engaged in ascending in holiness, by delighting in the Shabbos, studying Torah, praying, and singing zemiros to HaShem.