Who am I?

Frosted dew, melting snow
Wave of sea
Stream of river
Scent in the air
Hole in the mountain
Color of the sky
Light of the moon
Fragrance of flower, prick of thorn
A bird's flight, stillness of sand
Tranquility of night
Brightness of morning
Roaring storm, soothing breeze
Whomsoever it is
Whatever you shall call me
Howsoever you perceive me
I shall be the same
Forever & ever
Unknown to me as well
Can be either of these
Or none of these