You have to be aware what the consequences are of the approach you take.

My early stories revolved around reality and faith. I wrote a series of stories about the darker aspects of Christian myth: a woman who hides in the attic and watches the Apocalypse, a cult whose members preserve themselves in huge formalin tubs waiting for the Second Coming, and so on.

Some of my other stories are talked about as fantasy, some as horror, and some aren't talked about as genre at all. And the same story will be labeled differently depending on country.

All my stories and worlds spring from the basic principle of being a slave to the premise, to follow the consequences wherever they may lead without taking any easy or comfortable ways out.

If you want the reader to accept the premise as a given, then being specific is vital. This is what I'm after; I want the reader to accept the setting and the mindset of the characters, so we can get on with the story.

Worldbuilding to me is taking the consequences of an idea.

What I do with the story itself varies of course, but what I want to do is to present the world so that the reader can access it without tripping over the details.