The Rebbe offers assistance in acquiring tefillin and emphasizes verifying their status. He addresses a claim that modern fire-lighting should be permitted on Shabbat, refuting it logically and historically. He explains that mitzvot are divine commands, not based on human logic, and Torah is eternal and unchanging. He encourages spreading Chassidus with joy and clarity and blesses the recipient with a kosher and joyous Pesach.

https://www.torahrecordings.com/rebbe/igroskodesh/015/008/5363