>>63721715if you'll notice his drawing of clarice is the traditional madonna holding the lamb. this is a symbol that clarice has retained her purity. it's literally saying she is not damaged goods (she wasn't raped by her uncle), and that her desire to protect comes from a 'pure' place. obviously there's the virgin mary comparisons.
now notice that lecter asks literally to eat lamb chops lol. lecter wants to defile that purity. he wants to eat clarice, who is also a lamb of sorts.