I often wonder if it’d have been easier to write a book back in the “good ol’ days” where there’d have been much less free time but ostensibly much fewer distractions. When you’re in a room with pen and paper, I’d assume it’d be harder to procrastinate than when sitting at the computer. Even without the internet at your fingertips, there’s a plethora of programs to draw the attention of the truly devoted procrastinators.
Then again, there’s all sorts of trouble you can get into with just a pen, paper, and some good ideas, though what some may consider procrastination, others see as a necessary and integral part of the writing process. When I began the first book of my Padeia trilogy, TENTUK, for example, I was building a world with not only a unique social structure but a brand-spankin’ new religion. About midway through the story, I wrote that world’s creation myth. Considering that I was taking a class on Greek mythology, it’s not surprising that the tone and language is similar to some of those translated texts, but the myth itself is a blend of Greek, Egyptian, and Christian. (At least, it’s intended to be.)
Now, was the writing of the creation myth absolutely necessary to the story? Yes and no. Aspects of it came through in the writing. The government structure, for example, was underscored by the belief that it had been ordained as such by the gods themselves. This is mentioned once in an off-handed way by the title character, more to show his character and coming conflict than as a necessary world-building tool. I could have done without actually writing their myth in that instance.
I used the second half of that myth, specifically the creation of women, more extensively in the manuscript, and I’ve since mentioned it here and there in the second and third stories to help thread the stories together. Again, did I need to write the entire myth for this purpose? Probably not.
Do I still see the act of writing the myth as necessary for the books? Absolutely. Because in writing the myth, I better understood the mythos of my characters. I had a better understanding of the undercurrent within their society against which they needed to fight. While I doubt it’ll ever get published (if any part of the trilogy ever gets published that is), creating back stories, character charts, and plot graphs in some form or another are all part of the gig.

