This argument has to be worked out in some more detail, but in essence, given my claims about the match between the phenomenal world and the nervous system/organism, it is clear that one might develop a probe of ones self by exposure to stochastic stimuli: like listening to static. But unstructured noise, like static is not rich. Entrails, and tarot cards, and such, are uniformly very rich in structure, albeit without any additional forcing of interpretation. Thus it is not too surprising that they can serve as sounding boards for reading oneself, to find out what is latent within oneself, but not otherwise triggered by the environment.
In a similar vein, the interpretation of coincidences may prove to be a useful technique. Coincidences are important for illustrating what it is that the subject sees. In this way, the world is the sounding board.