Peace

There is something incredibly attractive about a peaceful person: someone who is at ease with themself, at peace with who they are.

There is something incredibly attractive about a group of Christians who are at peace with one another. People entering the walls of a convent or monastery sense this: there is often an air of serenity which reaches beyond the obvious. An intangible sense of harmony seems to pervade the stones.

Attaining peace has to be worked for:

So, chosen by God for this new life of love, dress in the wardrobe God picked out for you: compassion, kindness, humility, quiet strength, discipline. Be even-tempered, content with second place, quick to forgive an offense. Forgive as quickly and completely as the Master forgave you. And regardless of what else you put on, wear love. It's your basic, all-purpose garment. Never be without it.

Let the peace of Christ keep you in tune with each other, in step with each other. None of this going off and doing your own thing. And cultivate thankfulness. Let the Word of Christ—the Message—have the run of the house. Give it plenty of room in your lives. Instruct and direct one another using good common sense. And sing, sing your hearts out to God! Let every detail in your lives—words, actions, whatever—be done in the name of the Master, Jesus, thanking God the Father every step of the way.
Colossians 3:12-1 7, The Message

Make every effort to keep the unity of the Spirit through the bond of peace. There is one body and one Spirit—just as you were called to one hope when you were called— one Lord, one faith, one baptism;
Ephesians 4:3-5 (New International Version)

Make every effort