Their strongest version would be to say that fiction gives us the dream, and guides give us the means to realize it, thus making them intrinsically linked.
However, what is at stake here is the sequence and nature of influence; inspiration through fiction is an emotional impulse, an idealized image, a starting point.
Guides, on the other hand, intervene afterward to anchor this dream in reality by providing concrete information on logistics, safety, and practical aspects, acting as a reality filter.
A guide can reveal that a paradise beach seen in a film is actually infested with mosquitoes or difficult to access without an off-road vehicle, which is crucial information for concrete planning.