"Be anxious for nothing, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all comprehension, will guard your hearts and your minds in Christ Jesus." -Philippians 4:6-7

This peace that surpasses all understanding is the peace OF GOD. This is a God who is immanent, transcendent and omnipresent. So peace of a God like that is available NOW. This peace is here and available now.

The problem is we fight and resist it.

Why would we resist that sort of peace? More importantly, HOW do we resist that peace?

That is answered in verse 6. If I am not experiencing peace that is available to me in my life, it is likely because I am anxious in everything and praying in nothing.