“The power of Tefillin, when you put it on daily, is that you become centered on G-dliness. There are many people who have spiritual experiences; they have moments of inspiration. But they fall in and out of that inspiration; it’s not consistent, it’s not thorough.

When you put on tefillin every morning, it causes an internalization of G-dliness so that it’s not moments of ecstasy or moments of inspiration, but you actually become more G-dly yourself… you internalize the G-dliness… so that it inspires the performance of all the other mitzvot.

That is one reason The Rebbe gave for beginning all his mitzvah campaigns with the campaign of putting on tefillin… Once you get the tefillin internalized, it will lead to all the other mitzvot because you have developed a real appreciation and talent for G-dliness. It’s not just moments of inspiration or spiritual excitement; you become more G-d-like.”