In Wallace Stegner's "Angle of Repose," the quote illustrates the resilience of a writer's spirit. It emphasizes that a true writer continues to create, even when faced with personal loss or emotional pain. The metaphor of having one's heart cut out suggests profound suffering that does not diminish the urge to express and communicate through writing.

This idea reflects the notion that writing is an intrinsic part of a writer's identity, a vital force that propels them forward despite hardships. The act of writing becomes a means of survival and a way to process emotions, illustrating the deep connection between the writer's experiences and their craft.