In a Beginning, because really we have no idea if this was the first time God woke up with an itch that needed scratching, a burning desire to create, a sort of Jackson Pollack moment where all the colors just had to be splashed on the canvas...In a Beginning, the energy of the infinite inhale became so concentrated, so intense, that God couldn't contain it another second (even though you understand, of course, that there were no seconds, there was no time or space before Creation).