Why do we bow down on the floor during the Yom Kippur prayers, (I think we do it several times), which is something we never do during the rest of the year? Is there nothing idolatrous about this?
You are referring to a specific part of the chazan’s repetition of the musaf prayer which recounts the order of the service that the High Priest performed in the Holy Temple throughout the entire day of Yom Kippur. It is therefore called the seder avoda of the Kohen Gadol.
When the Temple stood, the eyes of all Israel were raised towards the Kohen Gadol’s order of service, which began before the break of dawn on Yom Kippur and lasted till the end of the day. The atonement for all of Israel depended on this avoda, which, when performed properly, was manifest for all eyes to see.
During this service the Kohen Gadol pronounced the ineffable Name of
When the kohanim and the people heard the glorious and awesome Divine Name pronounced by the Kohen Gadol in holiness and purity, they kneeled, bowed down, and fell on their faces saying, “Blessed be the Name of His glorious majesty unto eternity!”
It is during this part of the recounting of the service of the Kohen Gadol that we bow down, as was done in days of old during Yom Kippur in the Temple. However, nowadays, the actual Name is not pronounced, and we bow only three times — once for each of the three recounted confessions.
Even the Kohen Gadol on Yom Kippur is incapable of bringing forth the ineffable Divine Name from his mouth; even angels cannot pronounce it. No tongue contains a word for it, because it is concealed, ethereal, and awesome beyond all else.
This is the meaning of the verse, “In every place where I will cause My Name to be pronounced, I will come to you and bless you.” (Ex. 20:24) The verse seemingly should have read, wherever “you will pronounce My Name…” We learn from this that flesh and blood is incapable of pronouncing the ineffable Name, and that it was actually
In synagogues whose floors are of stone, it is customary to place something like a towel upon which to bow, because of the prohibition of bowing down upon a smooth stone, which is associated with idolatry (Lev. 26:1). Other types of surfaces are generally not considered to be problematic. Also, generally, it is considered enough to interpose between the floor and one’s face, so even a paper towel or napkin would serve as a separation.