One mission, purpose, reason for being, etc. for people is to help everyone, both soon and in the distant future, to, as a collective whole, live in a sustainable way, as one species (amongst many) on the planet.
Sustainability, in this sense, means that the overwhelming majority of people would always live in ways that were sustainable, due to cultures, traditions, and structures that supported sustainability and gravitated towards sustainability and restoration, rather than away from it.
Such cultures would work to protect nature and the wilderness; clean up those places that have been contaminated, poisoned, or otherwise damaged by human action; and to restore most of the world to a beautiful, natural, pristine place.
The purpose of the conference is to bring together those who hold this mission in their hearts and minds; and then to help these people to understand how money has played a role in un-sustainability, what money actually is, how it works, how it might work, and how it might be structured to support and forward this mission.
http://localfuture.org/conferences.htm What is your purpose, reason for being, mission statement?