In Slavic folklore, the creature known for representing both fear and protection is the Domovoi, a household spirit. The Domovoi is believed to protect the home and its inhabitants but can also instill fear if disrespected or angered. This dual nature highlights the balance between safety and danger within domestic spaces, reflecting core values in Slavic traditions. People often leave offerings for the Domovoi to ensure its favor and maintain harmony within the household, showcasing the interweaving of fear and reverence.