The interest of anthropology in modified states of consciousness is not new, but research on the subject remains delicate. Indeed, the accounts of the experiences of the people involved do not take place on bases which are solely the subject of observation: they assume the adoption of an intellectually open posture on the part of the researcher so as not to disregard others and their narratives a priori. Without this posture, research would be marked by judgment and ethnocentrism. Cultural relativism involved in the anthropological apprehension of differences is a principle unanimously accepted by researchers who must not perceive other models and practices under the filter of their own socialization. This is why most texts on religious beliefs and experiences adopt a more or less neutral tone in which the narrator seems detached from what he describes and does not relate to the reality presented by his interlocutors. Nevertheless, there is a margin between the anthropologist’s narrative about the experiences of others and that of his possible involvement in their lived reality. Aware of this discrepancy, most anthropologists choose and understand – not to account for what, when they are researching, does not fall within the scope of the narrative conventions of the discipline.