Sheila Joshi, a clinical psychologist practicing in the bay area of California, has posted an essay that features a clear summary of major elements of the First Sight model of psi, and pointed out some meaningful applications of the model in the direction of the kinds of experiences that sometimes occur to people – we might say, befall them, when they are not prepared for them.  She is concerned especially with the flood of apparent psi experiences that may accompany acute brain dysfunction.  In this situation, people sometimes tell of an overwhelming assault of images, voices, intuitions and emotions, some of which seem to refer to information genuinely coming from elsewhere.  Science has been able to offer little light in which to understand these experiences, and psychiatry has tended to write them off as meaningless pathology.  But sometimes they seem to be more than that.  As Joshi points out, these kinds of crises may be even more common now than in earlier times due to the widespread use of powerful psychiatric medications.  This is because the side effects of such medications, especially if they are withdrawn abruptly, can occasionally be savagely disruptive (google Paxil psychosis, for example, and see how many links pop up).   In my opinion, Joshi is rightly concerned that these terrible reactions are not much known about and widely misunderstood.  If the basic tenet of First Sight is correct, and everyone carries about a continuous and normally unconscious engagement with a very extended world, then these experiences may be seen to have a kind of validity, at least sometimes.  Such validation can be deeply important to someone whose core sense of self has been shattered by confusion and who is being told by experts that he or she must blame only a brain that was born defective for their suffering.  In addition to First Sight, Joshi finds the construct of kundalini especially helpful.

Read her essay.  She develops these points, and much more better than I can do.