GEN215 Holiness is first mentioned in the Torah with regard to Shabbat.  Besides the Kiddush, there are specific actions that man must take to make the Shabbat holy. All of these things have one thing in common: They are fulfillment of physical desires performed for making Shabbat holy.  In addition to the wine, man makes Shabbat holy by preparing and eating the best food of the week and by dressing up in the finest clothes of the week.  The Talmud says that it is a mitzvah to wash one’s body in preparation for Shabbat. Shabbat 25b.  This clearly shows that the Shabbat is made holy through actions that satisfy bodily needs for a spiritual purpose.  AMEMEI 100