"Gandhi was very astute in understanding the subterranean divinity," Carter said.
Audience members said they found Carter's speech captivating because he spoke from a unique perspective.
"It's useful for us to have a minister who brings us a tradition of the Atlantic and the South, and he made it relevant to New England and the civil rights movement," said Florence C. Ladd, a resident scholar at the Radcliffe Institute for Advanced Study.
--Staff writer Keith J. Lo can be reached at kjlo@fas.harvard.edu.