In "Anam Cara: A Book of Celtic Wisdom," John O'Donohue reflects on the beauty of aging and the stories that come with a well-lived life. He appreciates the deep lines on an older person's face, which signify the experiences and emotions they have endured over the years. This physical manifestation of time serves as a testament to their journey through life.

Moreover, O'Donohue emphasizes the importance of connection and wisdom found in the eyes of older individuals. The light he mentions represents a depth of understanding and insight gained through their experiences. Engaging with such individuals allows younger generations to honor their legacy while gaining valuable life lessons.