"For he commands his angels with regard to you, to guard you wherever you go." - Psalm 91:11
Angels are all around us. Some of them are quite visible, like reminders of God's presence. Some of them are carried with us in our pocket, so we are comforted with the knowledge of God's protection. Sometimes we are surprised when an angel seemingly appears to us in the guise of another person. I recall someone who offered their advice on a medical device that would soothe the pain I was having, and when I went to the store the next day to purchase that device, that person was shopping at that store at that same time and at that same place. This was truly an angel sent to help me when I needed it most.