As it was revealed to our beloved Prophet Rover in the old times...
In the beginning, there was only the Great Fido. There was neither space nor time, just Fido. Seeking a way to share the love that was overflowing in His Heart, the Great Fido imagined a form of a world with clear blue and bright green.
He called the clear blue "water" and the bright green "land". He separated the water into two parts, one higher in place than the other which He called "sky". Like ribbons, the blues and green undulated to the beat of His Heart.
Fido then imagined forms in miniature of how He thought of Himself. He gave these forms four limbs with which to race happily along the ribbon of bright green. These same four limbs could splash playfully in the clear blue water.
The great gift of Fido was to give these forms shiny pink tongues with which they could thank and praise Him for the beautiful world of blue and green. He called these forms that He imagined as parts of Himself, "dogs".
And it came to pass that the Great Fido enjoyed watching and playing with His dogs.