I like the definition of meekness that’s in my Bible dictionary. It says meekness is “an attitude of humility toward God and gentleness toward men, springing from a recognition that God is in control.” It is strength and courage under control, coupled with kindness.
This kind of meekness is having faith and peace, because you know God’s in control. You can be mild and quiet of nature, because you’re full of faith. You have the assurance that God’s going to work things out no matter how incredibly overwhelming or desperate the situation might be.
You have faith, and therefore you have trust. You’re mild because you’re not frantically trying to work up a solution in your own strength. You’re not depending on your own talent, your own wisdom, your own charisma, but on the Lord, and that calmness translates to others as the Lord’s presence right there with you. They know everything’s okay, because you have that meekness, that quietness of spirit about you.