https://youtu.be/KuqGYaSGhToI am not Chabad and I am not pleased by how some of the people in the video positioned their Tefillin but I like the positive feelings they express about Tefillin.
If you want more details about exactly how to put on Tefillin and some on the ideology behind the commandment try
http://www.aish.com/jl/m/pb/48969816.html