We can be at peace whilst God is working out the kinks in our lives.
We can trust God because we know that no matter what we face, God is able to make it work for our good. He may not have caused it, but He has such amazing redemptive power beyond what we can comprehend.
If we want to grow in our peace, we need to tuck in even closer with God. The further away we move from Him, the less peace we will have.