How to instill fear, tension or anxiety in your reader?

Fear is a powerful emotion, which makes it a difficult one to achieve in prose. Instead of music or sound effects, we have descriptions of sounds and the author's voice. Instead of jumpscares, angles, cuts or shifts in colourgrading or imagery, we have paragraphs to describe the scary thing or the terrifying events. Instead of seeing an actor show a fearful expression, we have the thoughts inside the character's head. Compared to how easily...