A Lot of Things Plunging

I am plunging and plunging.
I was not sure where I was going down at first.
But the time of plunging was so long that I stopped worrying.
I decided to think about it once I reached the bottom.
A lot of things are plunging with me.

Derailed Roller Coaster
Losing My Shoes Dream

Falling Books
A Dream I Had this Morning