Eicha: Understanding Disconnect, Paranoia, and the Need for Mourning

Why does the Torah use "eicha" (how can it be) both for Moshe's lament and in Megillas Eicha? The shiur develops that disconnection from God creates existential paranoia - explaining why the Jewish people irrationally accused Moshe of plotting against them. The three weeks of mourning address this deeper spiritual death, not mere sin.