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 lustily, but in a professional manner, beats a drum. This prevents the soul from bolting again, and tends to frighten it into the patient.

In some obstinate cases of loss of dream-soul, however, the most experienced medical man will fail to get the fresh soul inserted. It clings to his fingers, it whisks back into the basket or into his hair or clothes, and it chirrups dismally, and the patient becomes convulsed. This is a grave symptom, but the diagnosis is quite clear. The patient has got a sisa in him, so there is no room for the fresh soul.

Now, a sisa is a dreadful bad thing for a man to have in him, and an expensive thing to get out. It is the surviving soul of a person who has not been properly buried—not had his devil made, in fact. And as every human surviving soul has a certain allotted time of existence in a human body before it can learn the dark and difficult way down to Srahmandazi, if by mischance the body gets killed off before the time is up, that soul, unless properly buried and sent on the way to Srahmandazi, or any other Hades, under expert instruction given as to the path for the dead, becomes a sisa, and has to hang about for the remaining years of its term of bodily life.

These ensisa are held to be so wretchedly uncomfortable in this state that their tempers become perfect wrecks, and they grow utterly malignant, continually trying to get into a human body, so as to finish their term more comfortably. Now, a sisa's chief chance of getting into a body is in whipping in when there is a hole in a man's soul chamber, from the absence of his own dream-soul. If a sisa were a quiet, respectable soul that would settle down, it would not matter much, for the dream-soul it supplants is not of much account. But a sisa is not.