The quote from Sylvia Plath's "The Bell Jar" suggests that the speaker believes a simple act like taking a bath can provide relief or comfort, almost like a remedy for various troubles. This reflects a sense of optimism and the idea that physical self-care can positively impact mental well-being. The mention of things that can't be cured hints at deeper struggles that go beyond superficial solutions.
However, the phrase also acknowledges the limits of such actions, recognizing that while a bath may bring temporary solace, it is not a solution to all problems. This duality highlights the complexity of mental health and suggests that while self-care practices are important, they can only address part of a person's overall struggles.