 Many contentful experiences seem to have contents that must be specified by the use of indexical expressions, such as ‘over there’, ‘to the left’, ‘here’, ‘in front of/behind me’, ‘just a second ago’, ‘since a few second ago’, and so on. For instance, some auditory experiences seem to present sounds as coming from a direction relative to the ears; some proprioceptive experiences seem to present pressure sensations as located in specific parts of the body; visual experiences seem to present things in locations relative to the eyes and the rest of the body. More generally, contentful experiences present the world from the subject’s perspective both in space and in time. If one tried to characterize the perspective aspect of contents in language, it would be natural to use indexical expressions for spatial properties, for the subject herself, and for times.