In the quote "Curiosity is the hair of our habit tending to stand on end," the author suggests that curiosity is an underlying force that drives our habits. It implies that this animalistic instinct often stirs up our attention, making us more aware and alert. Beckett draws on Proust's reflections to highlight the intricacies of human behavior, indicating that our innate curiosity influences our daily actions and perceptions.

The notion that our attention is "stained" by this curiosity points to the complex relationship between our instincts and rational thoughts. Beckett's interpretation of Proust emphasizes that curiosity can both enhance and complicate our understanding of the world. It serves as a catalyst for exploration and inquiry but also reveals the primal elements of our nature that shape our experiences and interactions. Through this lens, curiosity becomes a dual-edged sword that drives human motivation and behavior.