Miserere mei, Deus

"Miserere mei, Deus" is a Latin phrase meaning "Have mercy on me, O God." It originates from a Psalm (Psalm 51) expressing deep repentance for sins and seeking God's forgiveness. The phrase is often associated with a famous choral composition by Gregorio Allegri, which meditates on humility, remorse, and the desire for divine mercy. The work's solemn and soulful music aims to evoke heartfelt penitence and trust in God's compassion, making it a powerful piece used in religious services especially during periods of reflection and remorse.