What does it mean if you dream that you are holding the wallet of a man you no longer speak to and it contains a picture and message from his kids in it?

Your dreams reflect your own thoughts, emotions and experiences. They cannot provide any information about anyone else's thoughts or feelings. So this dream reflects your own emotions that are still attached to this man, and perhaps also your affection for his kids. The dream does NOT mean that the man is thinking about you or that his kids are trying to tell you anything. It only means that you WANT these things to be true.