They began with a song and ended with a poem. In-between, there were photographs and giant graphic renderings, movement exercises and a “human pulse” formed when 90 people stood in a circle and squeezed each other’s hands. At a June summit in Whatcom County, Washington, titled “Our Resilient Community: A Community Conversation on Resilience and Equity,” the arts played a starring role. Kristi Slette, executive director of the Whatcom Family and Community Network, one of two Washington sites...