Phillippians 4:6-7 Do not be anxious about anything, but in everything, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus.
While it's not always easy to "not be anxious about anything", especially little Addison's heart surgery, it is such a comfort to know that the Lord can give your heart a peace that will surpass all understanding.
Today we are dealing with a physical heart and one of emotions. God can heal both and for that we give praise and Glory unto Him.
Remember Addison and her family in prayer today (http://inthemidstofit.blogspot.com.)