What does the Mezuza represent?
The Rambam says that "by the commandment of the mezuza, man is reminded of the unity of God and is aroused to the love of Him."
The Mezuza represents Shalom (Peace). There was a dispute among the Rabbis as to how the mezuza should be hung — vertically or horizontally. Ashkenaz follows the view to hang the mezuza at a slanted angle, while many Sephardim follow the view to hang it vertically. Due to the ravages of galus/exile, it is not uncommon to find Ashkenazim with a mezuza placed vertically and Sephardim with a mezuza placed at a slanted angle.
When one enters a house or room with a mezuza it is customary to kiss the mezuza or be aware of it. This is so that we will always be reminded of Hashem and to enter or leave with thoughts of Shalom — the loftiest of all qualities.
The Stop Sign
These "Mezuza Stop Signs" are meant to catch your eye as you enter a room — to remind you to kiss the mezuza and embrace its message of Peace and Hashem's Unity.
Contact us for a sheet of Mezuza Stop Signs (PDF):
raphael1 at TieDyeTzitzit dot com