The Umbrella seller

I will be your umbrella seller
Do you want the majestic black one?
Or the bee-deceiving flowered one?
Or the Newton's-disk resembling rainbow-designed one?
I will be your umbrella seller
And I will sell you an umbrella free of cost
But make me a promise and stick to it
Never open my umbrella when it rains.. Never..
My umbrellas are not designed for showers
It should blossom like an inverted flower
Only when tears flow down your cheeks
My umbrellas are designed only for your tears.