Like Family Members

The people of Am Yisrael are close to Hashem in essence, and they are connected to Hashem by nature, as family members are connected to each other. And therefore, the worst of Am Yisrael, who have no da’as at all, have the strength to sacrifice themselves al kiddush Hashem, for this is ingrained in the essence of their souls, which are connected to Hashem with a love concealed within them.

(as explained in Kol Simchah – Peshischa, Likutim)