In the planetary accretion metaphor, one of the early questions is: what kinds of dusts and gasses are in the cloud from which this small, slowly growing, solid object is forming? In our own solar system’s development, lighter elements were pushed away from the center of the solar nebula, leaving heavier materials closer in to form the rocky planets, including ours.
So the useful question from this analogy is, what are the predominant elements that are joining up as you build your now 5-day-old object?
Choose an image or object or presence that has occurred in your writing so far, and give it a category name, make it a type. Find other instances of this type to introduce into your writing.
(To clarify in a workable way what “image or object or presence” multiplication means, some examples: someone’s turquoise car figures appears in something I’m writing, and for whatever reason this feels like the most central sentence I’ve written. So I could look for other cars, or alternately other turquoise-colored things. The car appears in the middle of the night, so maybe I could look for another middle-night scene. Or I might introduce another person of a similar temperament or influence to the driver of the turquoise car. Those are all different ways I could choose to categorize or “type” the appearance of the car.)
(I should also shout out here to the literary-theological practice of typology, though here I am interested not in one turquoise car prefiguring the coming of the great turquoise car but in the way a nose for similitudes can usher us into a patterned scatter or help weave an imagistic rhyme scheme.)