Amnesty International has declared it the worst humanitarian crisis of our time: worldwide, more than 21 million people have been forced to seek sanctuary abroad. At the same time, some politicians rise to power through fueling xenophobia, racism, and fear, and distrust. In this deadly climate, we need to defend each other against the mass deportations, refugee bans, and border walls. The call for expanding sanctuary comes from Black, Latinx, Muslim, immigrant, indigenous, and LGBTQIA communities. So what is sanctuary? It is choosing a side in a humanitarian crisis between attacking and defending. It is building community as it resists displacement. It is sustaining humanity in a world that does not ensure everyone's human rights. Sanctuary is the light illuminating a dark street.