The main symptom of importance in the case, and the one on which depends the recognition of the existence of the epileptic condition, is the actual occurrence of typical epileptic seizures. These do not always occur. Sometimes the periodic attacks take the form of what are called epileptic equivalents, that is, certain anomalous states of consciousness or disposition, which can be accounted for only on the supposition that there is some more or less latent explosion of nerve force in progress. At times even so simple a condition as migraine so nearly simulates epilepsy of the psychical type, because of its complications and sequelae and the regularity with which it occurs, that it has been spoken of as an epileptic equivalent. There is no doubt that, in successive generations, epilepsy and migraine may have a relation to one another that is something more than merely a coincidence. A very interesting feature of epilepsy for confessors and spiritual directors is the tendency to religious emotionalism which so often accompanies what is called idiopathic epilepsy. This means epilepsy that develops without a direct cause, and which is evidently dependent on some essential defect of the nervous system of the individual. In asylums epileptics that have become irrational are known for their religious manifestations, and very often for perversion of their religious tendencies. As has been well said, an epileptic may carry his Bible under his arm, read passage after passage from the Scriptures, sing psalms continuously, and yet be so {255} ungovernable as to be a nuisance, and so irritable towards his fellow patients and attendants as to be a constant source of worriment. He may read just those passages which have reference to love and charity for one's neighbour and dwell on them until they become a bore by repetition, and yet in a moment of irritation implore to be allowed to get hold of some deadly weapon in order to kill the usually inoffensive person who has done him some imaginary injury. This last is a marked feature of the disease, for epileptics are prone to foster fancied grudges, and to consider without due reason that they have been ill treated. This is especially true with regard to their relatives or to those in attendance on them, and must be always borne in mind when the subjects of epilepsy bring tales of woe and persecution, which they pour out to anyone who will listen to them, and especially to anyone whom they think will set them right. These fancied wrongs are as real to the patients themselves as if they had suffered from actual maltreatment. The idea of revenge may easily obtrude itself. It can be kept under control, as a rule, during ordinary health, between attacks, but just preceding or after an attack it may very well become of the imperative character that sets an uncontrollable impulse at work.