Käenpesä, which translates to "cuckoo's nest" in English, is a Finnish term often used to describe a cozy, safe, or nurturing environment. It can refer to a physical space, such as a home or a shelter, where individuals feel secure and protected. The term is also associated with the natural habitat of the cuckoo bird, known for its unique nesting behavior. In literature, Käenpesä is famously linked to the novel "One Flew Over the Cuckoo's Nest" by Ken Kesey. The story explores themes of freedom and confinement within a mental institution, drawing parallels to the idea of a safe haven versus a restrictive environment. The term evokes feelings of comfort and belonging, making it a poignant metaphor in various contexts.