Antithesis

I am both Angel and Devil;

I am both Savior and Sin,

Biting your skin in Cold weather,

Burning your face in Heat's den.

I am the cool drink of Water.

I am the Fire for warmth.

I am the black Clouds above you.

I am the Home in the storm.

I am the Cough and Pollution.

I am the Medicine too.

Oh, how can Hell turn to Heaven

With colors of every bold hue?

Life is not Darkness or Brightness.

I am both Hated and Loved.

Friend, Rival, Acquaintance. 

I am the Sword and the Dove.