The details of the Parsha of Machatzis Hashekel that are irrelevant beyond Moshe’s time (and beyond the Beis Hamikdash) need analysis. How are they also an eternal lesson? The Rebbe explains the idea that Torah is a Hora’a and a illuminated lesson for us to practice, not only to understand in some spiritual way. The answer lies in the idea that the Adanim are Kabbalas Ol, but before we can give Hashem Kabalas Ol, we need the strengthening of Emuna, which is done by Moshe who ‘raises the heads of Yidden’, this includes the Moshe in each generation and in each person.