Cecilia traces to a Latin clan name of uncertain original meaning, though the name became deeply associated with music through its connection to the patron saint of musicians. It's commonly read as carrying devotion expressed through art -- discipline and feeling combined rather than either alone.
Mars should be asked for promotion of animosity, boldness of spirit, taming of beasts, subordination of passions, splendor of lights, generation of insurrection and submission of enemies. - Picatrix (Andalusia, ~1000.AD)