"Qi" is a concept in Chinese cosmology that is evident in Chinese martial arts. While in general use in China, it may refer to a diverse variety of phenomenons, medical, martial, every-day, or otherwise, as in they might refer to many different types of qi; in the West, we may instead refer to qi as one monolithic, mysterious martial concept when it really isn't. In Chinese martial arts, it is typically refers to the concept of manipulating the energetic and physical systems of the body, such as breath, blood, or other internal structures within the body. Rather, the phenomenons that qi models are certainly real and the disciplines the learn to cultivate and work with it are worthwhile, but that it is not something mysterious or ethereal, nor is it something that is easily modeled in other ways in application.