We don't talk much about humility in AA, almost never use the word. Maybe that is because, as the spiritual adage has it, if you think you are humble, you are not. But I see enough of freedom, serenity, healing, and unselfishness around me to think it must be hiding there somewhere.
The first mystery is simply that there is a Mystery. A Mystery that can never be explained or understood. Only encountered from time to time. Nothing is obvious. Everything conceals something else...Spiritual awareness is born of encounters with the Mystery.