Why does the tefillin shel yad (hand) have 1 box and the shel rosh (head) have 4 boxes? I know it's because of the physical "structure", i.e. - the yad has 1 parchment and the rosh has 4 separate ...
According to Masechet Menachot daf 37, we're supposed to place the box of the arm on the bicep. Why then do we also have a strap that wraps around the arm and hand (according to earliest sources)?
What is the reason for wearing tefilin? is it to induce a person to study torah? Or perhaps in order to remember the exodus from Egypt? If so, what is the connection between this to wearing black ...
BH i very often have the merit of putting tefillin on jews that have never put it on. how do i describe to them what it does spiritually?