Awesome that you were able to get it! I've been trying WILD for about two months now and keep falling asleep!
Anyway, I'm sure it'll be easier now that you've experienced it. To answer your question: from what I've read, that's basically what you have to do (ex. Visualize a beach, you'll find yourself on a beach. Visualize a garden, you'll end up in a garden.)

Happy dreaming!
-- Noah