To be nude and respected. To be a muse. To inspire. To be still. To be an observer. To be a creative community member. These are the joys of figure modeling. To get free, original art. To get paid. It is not a task for everyone. It is not for the shy, insecure, or those seeking validation of their body's sexual aesthetics. It is for those who recognize the body as a gift. For those who recognize that you have to give the gifts that you are given. It is for those who like to feel a breeze in places that drafts aren't typically felt. It is for those who can withstand the stiffness and aches of muscles that have been in the same position for a longer period than they're used to.
It's about being a part of the creation of something. Whether the artist is a novice or master teacher, it's about being part of a learning/growing/CREATING experience. In your birthday suit.