The quote from Ian McEwan's "Atonement" highlights the profound impact a simple glance can have in the context of falling in love. It suggests that a single moment, encapsulated in a fleeting look, can initiate deep feelings and connections between individuals. This powerful notion illustrates how love often begins in subtle and unexpected ways, emphasizing the importance of non-verbal communication in human relationships.

By portraying love as something that can spark from such a concise interaction, McEwan invites readers to reflect on their own experiences of love and attraction. The quote reinforces the idea that love can be both immediate and transformative, with just a glance having the potential to change the course of someone's emotions and life significantly.