Mastering operatic vocal technique hinges on three pillars: breath support, resonance, and agility. Proper breath support, engaging the diaphragm for a controlled airflow, fuels vocal power and stamina. Resonance, shaped by vowel modification and exercises like yawning and humming, enriches the tone by amplifying sound in the body's natural cavities. Finally, agility, honed through scales, trills, and focused practice, allows for the precise execution of rapid passages.