This document discusses how museums can and should adopt missions focused on wellbeing and sustainability to address the root causes of issues like global warming, environmental degradation, and inequality. It recommends that museums (1) educate about these issues while giving space for difficult emotions, (2) engage cultural values to help bridge the value-action gap, and (3) change how they engage with communities towards mutual relationships and wellbeing. Adopting missions centered on wellbeing rather than just wealth may risk challenging the status quo but can be achieved by learning from failures, building support networks, and defining communities openly while establishing the museum as a local hub.