Four years ago, I got the news that every parent dreads. Without warning, my healthy 25-year-old son, Raphaël — a wildlife biologist and an environmental activist — had collapsed and died, likely from a rare heart disorder nobody knew he had. You no longer see your life in the same way afterward. But must grief diminish you, or can it do the opposite? And the emotional arc of both, I came to believe, could create the strength and purpose needed to navigate an increasingly unstable future.

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Persons: Raphaël, —