A sponsor is an alcoholic who has made some progress in the recovery program shares that experience on a continuous, individual basis with another alcoholic who is attempting to attain or maintain sobriety through A.A.
When we first begin to attend A.A. meetings, we may feel confused, sick and apprehensive. Although people at meetings respond to our questions willingly, that alone isn’t enough. Many other questions occur to us between meetings; we find that we need constant, close support as we begin learning how to “live sober.”
So we select an A.A. member with whom we can feel comfortable, someone with whom we can talk freely and confidentially, and we ask that person to be our sponsor.
For further information, read the official A.A. Questions and Answers on Sponsorship (PDF). The pamphlet describes uses shared A.A. experience to answer 34 questions likely to be asked by persons seeking sponsors, persons wanting to be sponsors, and groups planning sponsorship activity.