This paper argues that since nonphysical souls lack a position in space, they cannot have the pairing relations that would allow them to interact with physical bodies. For example, if two rifles (A and B) are fired at the same time, and consequently Andy and Buddy are killed, we can only say that rifle A killed Andy while rifle B killed Buddy, rather than the other way around, if there are appropriate spatial relations (such as distance and orientation) that pair (...) Andy’s death to A’s firing, and Buddy’s death to B’s firing. But no such pairing relations are available to nonphysical minds that lack spatial positions altogether. And attributing spatial location to nonphysical souls raises more problems than it solves, such as how to find particular souls at particular locations, how souls taken to be geometric points in space could retain enough structure to have sufficient causal powers to influence bodies, and why spatial entities more robust than points shouldn’t simply be conceived of as exotic physical entities like astral bodies. -/- 1. The Problem -- 2. Descartes and Mental Causation -- 3. Causation and the “Pairing” Problem -- 4. Causation and Space -- 5. Can We Locate Souls in Space? (shrink)