A certain feeling, or idea? A shade, or color? A memory, or a dream?
Grab every little thing that sparks your imagination, and use it. The bobbing head of a black bird, the way a leaf twists in the chill wind, the boiling shape of a cloud. The twirl of your gut while falling from a height, the similar twirl while falling in love, the flare of anger in your chest, the prickle of anxiety on your scalp. The mystery of an unopened box… the unease of a dark corner… the satisfaction of a smoothly interlocking puzzle…
Gather all these feelings and burn them in your mind’s furnace to fuel your fingers and write, write, write!