Daf Yomi - Yoma 59 Lekavod Shabbos

The Gemara states that everyone agrees that wherever the applications of blood on the corners of the mizbeiach are completed, from there the Kohen Gadol would proceed to apply his seven sprinklings on the roof of the mizbeiach. The reason for this is because it is said וטהרו וקדשו
and he shall [thereby] purify [the Inner Altar] and sanctify it. This implies that in the place where he sanctified it with applications on its corners, there he should purify it with applications on its top. Many times we find that קדושה, holiness, is associated with טהרה purity. Prior to receiving the Torah, which is referred to as טהורה, pure, the Jewish People had to make themselves holy. The same idea is reflected in Shabbos. In order for one to experience the holiness of Shabbos, one has to purify himself, which is accomplished by immersing in the mikveh and ridding himself from all mundane thoughts. Only then can one truly experience the holiness of Shabbos.

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