A Yid is a shaliach shel mylah, a shaliach vu air is, is air der koach hamshaliach; der yisron hamalah in neshamos legabei malachim – vos bah neshamos is dos al pi haTorah ~ Bal haTanya

A Jew is G-d’s messenger, wherever a messenger may be, he represents the power of the one who sent him; the superior quality that souls possess, higher than the angels (who are also “messengers”), is that souls are messengers by virtue of Torah.