Hiiro realizes that he possesses Dagan Zot's heart, and that if he dies, Dagan Zot will die as well.  Only after Giruu reveals the depths of his devotion does Hiiro find the strength to carry on.
I can hear the pretty sound of your heartbeat.
يمكنني سماع صوت دقات قلبك الجميل
Ich kann das schöne Geräusch
deines Herzens hören.
Escucho el bonito sonido de tu corazón.
Escucho el bonito sonido de tu corazón.
Les jolis battements de ton cœur
me le confirment.
Posso sentire il bel suono del tuo cuore.
Eu consigo escutar o som 
bonito que o seu coração faz.