Christopher Pratt’s imposing lighthouse at Ferolle Point, N.L., painted in 1998, shines like a beacon of order and mastery over the unruly forces of nature in “The Deep Waters” section of Generations: The Sobey Family and Canadian Art at the MNBAQ. The Ferolle Peninsula juts out into the Strait of Belle Isle from Newfoundland’s Great Northern Peninsula. (Photo by Shirley Nadeau)