Saidaikouyakusuu

RADWIMPS' song 'Saidaikouyakusuu' delves into the intricacies of a relationship, using mathematical metaphors to explore the balance and unity between two people. The title itself, which translates to 'Greatest Common Divisor,' sets the stage for a lyrical journey that examines how two individuals can find harmony and understanding in their differences. The song opens with a comparison of physical attributes, suggesting that despite their differences, the couple can walk together harmoniously. This metaphor extends to their emotional and mental states, emphasizing that their thoughts and feelings are interconnected, even if they are not identical.

The lyrics also touch on the idea of inherited traits and the reasons behind them, hinting at the complexities of human nature and relationships. The mention of 'Papa and Mama' hiding their hearts when they were born suggests that some aspects of our personalities and emotions are deeply ingrained and not easily shared. This secrecy is not necessarily negative; it adds depth and mystery to the relationship, making it more intriguing and meaningful. The song encourages the couple to cherish these hidden aspects and use them to strengthen their bond.

As the song progresses, it becomes clear that the relationship is not about giving or taking but about finding a balance that works for both parties. The repeated references to mathematical concepts like doubling and halving symbolize the give-and-take nature of love. The lyrics suggest that the couple should not force their feelings into words or actions but let them unfold naturally over time. The song concludes with a hopeful message, encouraging the couple to continue their journey together, embracing both the sunny and cloudy days. This balance, or 'greatest common divisor,' is what makes their relationship unique and enduring.