The Grinch's heart transformation from small and mean to three sizes larger reveals a profound truth about Christmas and our hearts. Just as the Grinch discovered that Christmas means more than material things, Scripture teaches us that Jesus came to reveal the true condition of our hearts. God reveals our hearts not to condemn us, but to heal us through His grace. Our hearts are most exposed in everyday moments like interruptions, unfair treatment, success, and when we encounter people in need. These situations show whether we're living with grace, humility, and love, or with pride, bitterness, and self-preservation. A revealed heart has the potential to become a redeemed heart through God's transforming power.