They tried to "science-ify" the magic of The Force with all the extremely silly midi-chlorian hoo-hah in the later movies/books, but it never really took. It was magic (in a science-fiction setting).
By the way, I hate "tagging." Any system that allows anybody to add tags becomes so polluted with duplicates—not to mention the sheer numbers of obscure, barely related (if not downright irrelevant) topics—that every title starts getting included in every search. It all starts to become relevant to
everything. Which in my eyes, is no different than being relevant to
nothing. I especially despise it when my ebooks come pre-tagged (in their metadata)... how presumptuous.