Prayer and Coincidence

Someone once said, when asked if answers to prayer were merely coincidence, "Well, when I pray coincidences seem to happen." So here's an example from today. We were praying this morning at Morning Prayer for someone we know who's mother is ill. This afternoon I happened to be going over to the church and bumped into this person by the shops. We talked about his mother's situation and the difficulties she is facing. As we parted, he said, "I'm so glad I met you today." I sensed that he was really helped by our chat and the concern of others. Coincidence, or answer to prayer?