Tefillin | Rabbi Dr. Aaron Adler

And you know the mitzv of is from morning to night we take it off after why because the rab tells us in the fourth chapter of that the sanctity of twillin is such that when you have fillin on you're not allowed to detract from your attention of a kadosh you have to be thinking about a kadoshul full time and because we know ourselves better than anyone else that's not going to happen and therefore it would be a profane it would be profaining the kadushin if we work wear it the whole day. So we take it we the great hope is that for a half hour in the morning davening we can focus on that's the great