Season of fall begins

So, the season of fall begins.
All the colors become gloomy,
and my sight blurs too.

I don't know how they came in.
Maybe there's something doomed,
which need a certification to stand on.

"To see a world in a grain of sand'n'a heaven in a wild flower,
Hold inficity in the palm of your hand'n'eternity in an hour."

Now what is driftin'in my mind?
Say it to me, dear.