The quote reflects a deep sense of loss and disillusionment, where the narrator once pursued an idealized notion of perfection but faced the painful consequences of that pursuit. After experiencing the void left by losing something that seemed perfect, there's a shift in perspective, leading to a desire for a more grounded and realistic approach to life.
This longing for the "middle of the road" signifies a rejection of extremes, suggesting an embrace of the ordinary and the mundane as a protective measure. The narrator seeks contentment in the simpler things, aiming to safeguard their heart from the risks that come with pursuing unattainable ideals, thereby valuing what truly matters over ephemeral perfection.