Ostensibly titled "The Angel Appears to St. Joseph in a Dream," that is clearly no angel.
Look at the black soulless eye-pits. That is a 17th-century Sadako from the Ring, crawled forth from his book to devour his soul and torment it for all eternity. Her hand above the flame appears to be channeling a legion of invisible demonic minions to flow into their new flesh-host. It would not surprise me if he had been a young man only moments before, his life force sucked out through his beard.