This article introduces the relatively new field of religious studies devoted to Western esotericism, or Western esoteric traditions including alchemy, various magical traditions, Christian theosophy, Rosicrucianism and other secret or semi-secret groups. In it Versluis also argues that Western esoteric traditions as a whole rely on the power of the written word or image in order to convey and perhaps generate changes in consciousness. Be it Kabbalism or alchemy, troubadours and chivalry, the Lullian art, magic or theosophy, pansophy or esoteric Rosicrucianism or Freemasonry, one finds a consistently recurrent theme of transmuting consciousness, which is to say, of awakening latent, profound connections between humanity, nature and the divine, and of restoring a paradisal union between them. Hieroeidetic knowledge can be understood in terms of a shift from an objectifying view of language based on self and other to a view of language as revelatory, as a via positiva leading towards transcendence of self other divisions. It is here, in their emphasis on the initiatory, hieroeidetic power of language to reveal what transcends language, that the unique contribution of Western esoteric traditions to consciousness studies may well be found.
Cartesian philosophers argue that the self is as much corporeal as it is mental.
Because we have the sense of proprioception, a kind of body awareness, we are immediately aware of ourselves as bodies in physical space. In this debate the case histories of patients who have lost their sense of proprioception are clearly relevant. They can initiate movements, and with the help of visual feedback learn to control them. It is shown that the traditional view of the self as immaterial is not supported by these cases. But the argument against this view has to be amended.