One of the greatest skills available to everyone is to live quietly, serenely and peacefully of oneself. It is inside of us human being, It is inside our mind that pain and conflict occur. We live in the world of stress, trouble, conflict, and noise.
Having a peace of mind doesn't really mean that everything in our life becomes light and easy. But I believe that we are able to handle those stress, etc inwardly controlled and quiet.
The text in Isaiah 26:3 suggests the way in which by his is done.
"You will keep in perfect peace those whose minds are steadfast because they trust in you." It means, when you get your mind off your conflicts and to God with trusting Him, you will master the skill of living at peace with yourself.
Sometimes we pay attention and become inward depending on what inwardly we think.
If you have negative or not peaceful thoughts, you are not really going to be peaceful.
If you think confidently and calmly, you will become confident and calm.
We must learn to control and discipline our thinking.
The first thing to do to live with peace in a tumult world is to fill your mind with thoughts of peace. The second thing is to don't take yourself seriously because if you do, you can ultimately get to a point where you almost imagine that all civilization falls on what you do. As i see, and as i think that we are taught to love the people around us, serve the Lord, do the best you can do---and then, "having done all," as Saint Paul says, (Ephesians 6:13).
The one and only control that will guarantee a person's ability to live at peace with himself is, in my humble judgment, to live with Jesus Christ.
If a person has Jesus deep in mind and has in him that "mind...which was also in Christ Jesus" (Philippians 2:5), then he thinks the kind of thoughts that Christ thought.
If he has Jesus in his heart, he is confident and serene.
Knowing that no matter comes in way of the pain, difficulty, sorrow, opposition or even death. Jesus is with him----our everlasting Friend.
The more you struggle for a peace of mind, the less likely you will ever get it.
The resulting sense of cleanness will add to your inner peace. It is also really helpful to use lines from poetry, or passages from the Scriptures. Every one of us wants inner peace. And we all can have it.
John 14:27: Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid.
Surely no words more beautiful than these we uttered. Always remember that peace that comes through Jesus Christ ---the only kind worth having---is the very source of the power we need for meeting the responsibilities in our lives. :)