Meaning of And I'll be eighty-seven, you'll be eighty-nine

In Taylor Swift's heartfelt song titled 'Mary's Song', the lyrics take listeners on a nostalgic journey through the different stages of a growing relationship. The overall themes of the song include love, friendship, and the passage of time. Each verse and chorus gives us glimpses into the progression of the bond between two individuals, starting from innocent childhood friendship to a life shared together as a couple. However, it is the specific line, "And I'll be eighty-seven, you'll be eighty-nine," that introduces another layer of depth to the song's themes.This line signifies the enduring nature of their love and the commitment they have for each other. It speaks to a future where they will still be together, deeply in love, despite the passing of years. This lyric evokes a sense of timelessness and highlights the lasting impact of their connection. While it may be unexpected in the context of the song's earlier verses that focus on childhood memories, this line adds a touch of fantasy and imagination to the narrative.One theme this line delves into is the idea of eternal youthfulness. The speaker envisions themselves as elderly, but their perspective of their beloved remains unchanged. By comparing their partner to the stars that shine in the sky, the line suggests that love has the power to defy the limitations of age. It hints at a timeless quality in their relationship, where age is unimportant and their bond remains vibrant and ever-present.Another theme that emerges from this line is the concept of lifelong love and commitment. The numbers eighty-seven and eighty-nine allude to advanced age, symbolizing a lifetime spent together. This lyric emphasizes the depth of their connection, depicting a love that has weathered the tests of time and only grows stronger with each passing year. It conveys a message of enduring companionship and mutual support, even in the later stages of life.Furthermore, the line can be seen as an expression of gratitude and appreciation. As the speaker contemplates the future, they are filled with awe and admiration for their partner. The mention of looking at their loved one "like the stars that shine" suggests a continued sense of wonder and admiration for who they are and what they mean to the speaker. It implies that this love story has elevated their lives, providing a constant source of inspiration, joy, and fulfillment.In essence, the line "And I'll be eighty-seven, you'll be eighty-nine" in Taylor Swift's 'Mary's Song' encapsulates several imaginative and unexpected themes. It explores the ideas of eternal youthfulness, lifelong love and commitment, and the expression of gratitude for a deep and lasting connection. Through this line, the song reminds us that genuine love can endure the test of time and holds the power to transcend age, bringing an enduring sense of joy and wonder to our lives.