Musar su Salmi 118:10

All the wicked people surround Jerusalem, as is written: כל גויים סבבוני, "All the Gentile nations surround me" (Psalms 118,10). Jerusalem can be compared to the "lily amongst the thorns," Solomon's description of Israel in Song of Songs 2,2. Because terrestrial Jerusalem is surrounded by such secular turbulence, the ערלה in the emanation יסוד has to be removed as a first step so that the covenant called ברית המעור, the mystical root "סוד" of the emanation יסוד can be revealed and the עטרה be laid bare.