This article provides an interpretation of aspects of ecofeminism in Sarah Ruhl’s In the Next Room or the Vibrator Play. My interpretation focuses on representations of a harmonious and peaceful world of ecosystems. In this respect, the play challenges binary discourses, which can be seen through the character of Catherine and her sexual liberation, as well as the overthrow of the ruling dicourse that saw men/science as superior to women/feeling. The article looks at the way that Ruhl represents how to understand and accept the other via Levinas, which is described in the work through the characters of Elizabeth, Letitia, and the Givings. The article also examines how the peaceful coexistence of humans and nature can be understood via characters and scenes related to nature. (Jeonbuk National University)