[Avodah] Mitsvat Sukkah is almost unique

[Elazar M. Teitz]

     R. Aryeh Frimer wrote 

<I believe it was Rav Kook ZT"L who noted that Sukkah and Yishuv Eretz Yisrael are the only Mitzvot which one fulfills even with the mud on ones shoes.>

     I have seen it written in the name of the Vilner Gaon that the only two mitzvos encompassing the entire body are sukkah and yishuv Eretz Yisrael, with which he associated the pasuk "Vayhi v'shaleim --sukko um'onaso b'Tziyon." 

EMT