Blue moon walk

Once upon a time an old man walks in the sky.
It's impossible are you saying… I can hear your doutes.
How a man can walk in sky? Nobody can it. You are so sure.
But no one has always said that to this one old man, so he don't know that it's impossible.
Just a day he goes over a roof and start to walk in the sky.
Just a step, another, another and so on…
Nothing under his feets, only the air… only the sky.
Step by step he goes on the moon… with his blue shoes.