The Poetry of Perception
You may find that person in life that is an exact replica to you, your alternate thumb print so to speak. But the truth is, we are all individuals and as such our perceptions vary.
I know what I see when I look at that plain wall, in the mirror, at 'him', etc. But what others see is not always the same. As a matter of fact it's rare to find someone that sees the same thing I do frequently and nearly impossible if not completely impossible to locate someone who sees the same thing I do every time. It makes no difference how simple. What I see as simple you might perceive as complex.
It's all in perception ... much like the saying, "Beauty is in the eye of the beholder." And THAT is what makes the world go round ... in my perception.