I've been pondering creativity recently. I suggest that creativity is more than an act: Creativity is a process.
That statement made, creativity is more than useless imagination, it is something tangible. Something is new that was not realized before! Creativity is turning new and imaginative ideas into reality. It is the ability to perceive, the vision to find hidden patterns, the action of making connections between seemingly unrelated phenomenon, the capacity to generate solutions.
It is not a single magical moment (though there are wonderfully encouraging moments of revelation along the journey) but rather the commitment to the process that is what defines the genius of the artisan who gifts us with her prose, his construction, their song, etc.
The creative doesn't start with nothing however. Usually (speaking for myself and for many of my friends) "writer's block" is the cause of to much "cluster" and a lack of focus for where to begin. Narrowing down the perameters is often the best way to begin. What are the core themes to be played with?
The process of creativity is a "filtering process" that begins with everything. Whittle away at the whole to focus in on the core beauty to be revealed. Then, when the creation begins to take shape, refine, refine, refine...