This chapter considers Crowther's arguments concerning the extraordinary scope of imagination in permeating all aspects of the existence. According to Crowther, the mimetic aspect of imagination, its representation of quasi-sensory aspects of that which it is an image of, is vital to all aspects of ontogeny. This means that people can generate images or image-sequences which embody quasi-sensory properties that are generally isomorphic with those things or kinds of thing which they are images of. In this way, the imagination continues the recognition of individual and general patterns of phenomenal unity that are first understood through the body's practical modes of adapting itself to, and manipulating them. Crowther's point is that the trans-ostensive fecundity of the image qua image is reciprocally correlated with the acquisition of language and concepts. As well as investigating the cognitive function of imagination Crowther is equally attentive to the phenomenology of the mental image itself.