Have you ever considered where the limits of your imagination are? How wild and strange the places can be that your mind can bring to you, almost so vividly that your mind seems to take you to those places? That is how creating new stories feels to me. There are no boundaries, no limits. The only ones that might appear are those that the events in a story bring about.
In that respect I follow the (to me wise) words of a genius author. His name? Ray Bradbury. In his book Zen in the art of writing he advocates the total absence of fear and limits. A person should be able to write without boundaries, about anything at all. Maybe there’s no one who will buy the story, not a person in the world who wants to read it.
This tells me that when the need to write that story is there, it has to be written. If only to get it out of one’s system. If you keep the words inside, don’t let them out of your system, they will start to revolt and block other words from appearing. (Writer’s block could be a result, literally.)
Somehow the boldness of writing with no holds or bars seems to work for me. When I look at the long line of Hilda the Wicked Witch books that are already out in the world, and the slew of them that are still to be written, that says something. A spin-off in the shape of the story about a ship that sails through space and time. It works. Of course, not every book is as successful as the average Stephen King novel but that is why he’s not me. I want to give him a chance as well. His writing is unlimited too (look at Carrie, or the Dark Tower series). Anything that needs limits will appear in the story. Stories don’t need those writing people to put limits on them. That would seriously limit the stories.