Meekness begins when we put our trust in God. Then, because we trust him, we commit our way to him. We roll onto him our anxieties, or frustrations, our plans, our relationships, our jobs, our health.
And then we wait patiently for the Lord. We trust his timing and his power and his grace to work things out in the best way for his glory and for our good.
The result of trusting God and the rolling of our anxieties onto God and waiting patiently for God is that we don't give way to quick and fretful anger. But instead, we give place to wrath and hand our cause over to God and let him vindicate us if he chooses.
And then, as James says, in this quiet confidence we are slow to speak and quick to listen (James 1:19). We become reasonable and open to correction.
Meekness loves to learn. And it counts the blows of a friend as precious. And when it must say a critical word to a person caught in sin or error, it speaks from the deep conviction of its own fallibility and its own susceptibility to sin and its utter dependence on the grace of God.
The quietness and openness and vulnerability of meekness is a very beautiful and a very painful thing. It goes against all that we are by our sinful nature. It requires supernatural help.
If you are a disciple of Jesus Christ, that is, if you trust him and commit your way to him and wait patiently for him, God has already begun to help you and will help you more.
And the primary way that he will help you is to assure your heart that you are a fellow heir of Jesus Christ and that the world and everything in it is yours.