Star Wars has confirmed the truth of the dark sides power, rewriting George Lucas original ideas about the Force. The Force itself is an elusive concept no one Star Wars writer or character completely understands its power or its true nature. This is what makes it such a compelling piece of lore, as different perspectives and experiences change what it means to wield the Force. The Jedi, the Sith, the Nightsisters, and other Force-wielding factions all have their own interpretations of its power, despite George Lucas earliest thoughts and explanations about the Force in Star Wars.

https://screenrant.com/star-wars-dark-side-nature-revealed-lucas-canon/