Where does the concept of kissing a mezuzah upon entering and leaving a room come from?
I always assumed it was a mitzvah. My husband recently told me it is not. It’s a mitzvah to put a mezuzah on a door way. By kissing it every time we pass by, we are showing love for the mitzvah of affixing mezuzahs on door posts. There is no halachic basis for kissing, or even acknowledging a mezuzah.
Was kissing mezuzahs something that was always done? Or is more of a newer – I guess I’ll call it – “chumrah” – for lack of better words?