Dancing in the rain

It's a fact, I think, I've always known
But one I do forget
That life is rich when you think it so
And poor when opposite

Rain can be dark or can be blue
The substance does not change
So sulk or smile, it's up to you
Which outlook you prearrange

I'm done with wishing I had more
For when I think the things I should
When a hole in the wall becomes a door
Then life is really really good