New answers tagged tefilin
If the all black retzuos have a kosher shade of black on the insides/sides and back then when the glossy black paint wears off (They put a layer of gloss over the painted top) a matte shade of black will be revealed. This is also a kosher shade of black. Be sure to choose a pair of retzuos in which the underside/sides/inside are black as if they aren't then ...
I met someone who said his skin had a bad reaction from the tefilin. He told me he consulted with Rabbi Moshe Heinemann shlit'a, who observed that any material that's theoretically kosher to be used as tefilin housing is not a halachic barrier between the tefilin and the skin. Therefore Rabbi Heineimann told him to put a piece of soft doe skin [or parchment, ...
Rabbi Maroof attributes this to the Beis Yosef (he doesn't give an exact citation). He lists three reasons why. 1) To help reach 100 blessings for the day. 2) Increased spiritual awareness on a fast day allows one to increase the amount of time in a day that Tefillin is worn. 3) Wearing Tefillin focuses concentration during prayer.
In my (predominantly Ashkenazi) school where we learned about Tefillin, we were taught that the reason for wrapping inwards is that it is towards your heart, thereby making a statement (over the top...) of the love that you (... towards your heart) has for the mitzvah of Tefillin.
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