We often wrestle with the darkest parts of ourselves in broad
    daylight.

We try to reconcile our good —
what we try to show others —
and our bad — what we try to hide.
Always we find ourselves trapped in this struggle,
caught between the primal reptile urges of the past
and the self-realization that has recently been evolved.

It is in this struggle that all manner of disorders arise.
Disorders - implying that there is a natural order,
an order in which we drive toward,
a perfection that we as a species must achieve,
a final, realized human form.
So it is not that we believe that there is currently perfection,
but that we recognize that if we can define perfection
(a course that first requires defining imperfection)
then we can achieve it as such.

It is in this struggle that we hurt others on all scales,
from lovers to friends to cities and countries.
We rule ourselves, but we need order so we rule over each other as
    well.
We step into the light to offer up the best in ourselves,
an attempt to bring out the best in others,
and on many fronts we succeed,
but on many fronts we also fail.
We destroy lovers, friends, cities, countries, and ourselves.

It is in our nature.
It is the nature of all things,
to evolve and to learn and to get better and to grow.
But as with everything,
we too must struggle,
we too must be destroyed
before we can be realized.