Box Mentality: How we can only accept the unknown as long we can define it.

Be honest, be clear, be concrete, define yourself…
How hard aren’t we looking for some one who gets us? Who understands us? Who completes us? Yet, how resistant aren’t we to consider ourselves anything less than unique?

Do you believe in only having one love? Only one soulmate?
Regardless the number of people on earth: how much of a romantic are you to have the guts to say : "Yes, I believe in the one". Does that mean you believe in being a "one" yourself?

Then why do we not only have a past, just as much we have a present coloured with trying to box every single other person in the world?

Admitted, we seem to be more open to “50 shades of grey”, introducing terms as “intersexual”, “interracial”, “fluid”, “ambivert”,…
But wouldn’t you say these concepts, the necessity to label, only confirms our efforts to “box” everything and every one even more? Why can't we take a very big box, and leave it with that? Why do we need to categorize everything that's in the big box?
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The “unknown” (differing from standard) used to be ignored, banished, punished, tortured, to even killed.
Currently, we are finally trying to recognise the beauty of variety, and more importantly: accepting the uncommon to be common.

But why is it we can only be accepting by defining?
Where does this urge to grasp everything and everyone come from? And why can we accept to not know everything, but we do have to understand everyone?