Peer support occurs when people provide knowledge, experience, emotional, social or practical help to each other. It commonly refers to an initiative consisting of trained supporters (although it can be provided by peers without training), and can take a number of forms such as active listening, reflective listening (reflecting content and/or feelings), or consulting. Peer support is also is being able to provide some form of self-disclosure that allows someone else to see you as a peer.
You have walked that particular way of life, maybe you have been in the same situation. You may be in recovery and being a peer is the way that you pass it on. Many make it their careers to be members of this field. It is a career of hope and promise, and it can change the life of one person at a time.