If you're going somewhere you probably already know where you're going. I mean, it would be foolish not to? That's the whole reason you set out in the first place right?
Not necessarily. There are those that go places they have never been before, where no one has gone before. In that case, there is no map - only uncertainty. But you usually still have a general direction.
Think about Vasco da Gama looking for a sea route around Africa to India, Lewis and Clark finding the head waters of the Mississippi (and then the Pacific Ocean), or Indiana Jones searching for the Lost Ark.
Not having a map isn't a good enough excuse for staying in your limiting status quo. There's a time to follow a map, and a time to explore new territories. Make sense of which one is right for you, then take the appropriate action.
Jay Johnson writes to inspire unconventional thinking coupled with unconventional doing for a better tomorrow.