Second, I add some machinery. There must be structure to hold up the idea. This too has power, for this skeleton gives the inspiration it's life. A colorful name I've always secretly liked deserves to have an entire story devoted to a character capable of living up to that name. And so I add description, coloring in the character's personality traits or occupations.
Now I'm standing full in the stream, proud and ready to declare myself. And yet here the third step. Will I jot this down? Commit to this marvelous story as more than an idea? The life of my new idea may be very brief now. Or it may have a power of it's own that delights and implores me to discover the vivid inner workings.
If all these elements are yes, then I can begin the journey. Step four, I can now create, and enjoy what the pounding keyboard tells me about itself, caught up, as I hope the reader will one day be, in my new story.