God finally speaks to Maud one night. Speaking in Welsh, He tells her that she is reaching the final test of her faith. What's interesting about this detail is that God is voiced by Maud's actress, Morfydd Clark, using her native Welsh language pitched way down (via Elle).
In doing this, Glass allows us to question Maud's state of mind –- is this truly a battle of faith, or is it a battle with herself? Regardless, Maud starts going through with the "final test." She visits Amanda and the two apologize for their actions, with Maud saying that God forgives everyone. However, the near-death Amanda now fully believes that there is no God. She then turns into a demon and Maud stabs her. Now even her love for Amanda is overtaken with her duty to her faith.
The end sees Maud go out on a beach, donning a jug of acetone. She douses herself in it and lights herself aflame. At first, she glows angelically, as the bystanders drop to their knees. But then, it cuts to Maud burning in agony. The ending is not an easy one, as it shows just how far one's delusion can go. Her drive to save others is something that should be admirable, but in doing so, she spelled her own doom. Maud's desire to run from her past has made her blind to her new dangerous behaviors that lead to her demise. Glass masterfully births a new kind of fear in her audience. Sometimes the scariest things aren't what's around us, it's what's inside us, and having our fate spelled by something we believe is good is more terrifying than any nightmare.
