In Val McDermid's book "Blue Genes," the narrative touches on the idea that the simple pleasures from childhood can provide comfort and joy in adulthood. The author reflects on how certain actions or experiences, reminiscent of youth, can evoke a sense of well-being and familiarity that often eludes us in more complex stages of life.

The quote emphasizes a universal truth: the things that brought us comfort as children often remain effective in alleviating stress or sadness as adults. This connection to childhood highlights the importance of embracing those basic joys, even when faced with grown-up challenges.