The quote "We think we've seen it all before, we think we know it all by heart" from Luanne Rice's book "Silver Bells" speaks to the often misguided belief that our experiences in life are exhaustive and that we have a comprehensive understanding of them. It suggests a sense of familiarity that can create a false sense of security, leading us to overlook new perspectives or lessons that can arise from even the most ordinary situations.

Through this lens, the quote encourages readers to remain open-minded and receptive to the surprises life presents. It serves as a reminder that every experience, no matter how routine, can offer new insights and emotions, urging us not to take our surroundings or experiences for granted.