Just how “into” your narrator’s head and heart do you want your readers to be? Do you want them to feel emotionally embedded with your narrator(s)? Or observe your characters’ experiences from afar? What emotional distance (close, far, or a mix) should you strike to achieve the best point of view for your story, novel, or memoir?
The answer, of course, depends on the type of story you’re telling as well as the experience you want your readers to have.
Luckily, you don’t need to know the answer before you begin writing—though it’s fine if you do. Somewhere in the process of drafting and revising, you’ll need to figure out the emotional distance that’s right for your story’s point of view (POV)—and your readers.