We move through the world like drifting islands, convinced that we are separate, unique, and untouchable. And yet, around us there is always a “stranger” who, without us knowing, mirrors us and completes us.

The stranger beside me may be a colleague at work, the neighbor next door, the passerby I meet by chance in a train station—or, more subtly, that hidden part of myself I have learned to ignore. I carry him in my gaze, in my reactions, in the way I tremble or shift when I come into contact with him.

Sometimes, without realizing it, we give him years of our lives: thoughts, dreams, fragments of our soul. Other times, we encounter him for only a few minutes—yet long enough to turn the lines of our life upside down and make us ask: “Who am I, truly?”

The Other is not just “another.” He is the silent proof of my own existence. In his eyes I discover the measure of my humanity. In his joys or sorrows I find echoes of my own emotions.

And, deeper still, the stranger is that part of myself I have denied, the one I left to fall asleep in forgetfulness. When I have the courage to look at myself without a mask, without defense, I meet him again. He looks back at me from the mirror.

That is why the question “Who am I?” can never be separated from “Who is the Other?” Perhaps we are merely two faces of the same being, lost for a while in the game of separation, yet always called to recognize one another.

In a way, real life does not begin when we assert ourselves before the world, but when we learn to see in the Other an extension of ourselves. The stranger beside me is not just an unknown—he is the mirror through which I learn to discover myself.