Looking for a rainbow?

Rainbows are beautiful aren't they?
I always question myself,
"What do they have at the end of the rainbow?"

Some people said,
"You will find leprechaun's gold at the end of the rainbow"

And some said,
"There's nothing, it's just some light deflection"

But still
I always wonder,
"What do they really have at the end of it?"

I wish i could be there, just once,
In my lifetime.