The spirit a a powerful superhuman entity, can do as he pleases, both with the horse he has mounted and with other human beings present. We thus have an expression of extreme passivity in the interpretation of possession trance. Yet, if we as objective observers consider the behaviour of the spirit to be in fact the behaviour of the individual himself, acting out unconsciously , the role of s spirit, we see great expression of aggression, mastery, self assertion, authority, and the likes. Women assume the roles of males and men those of females. Thus, we might translate this observation as follows: Possession trance offers alternative roles, which satisfy certain individual needs, and it does so by providing the alibi that the behaviour is that of spirits and not of the human beings themselves. And furthermore, in order for human beings to play such assertive roles, they must be totally passive, giving over their bodies to what are ego-alien forces. In a hierarchical society, demanding submission to those in authority, one acquires authority by identification with symbols of powers, identification which goes as far as the total assumption of the other's identity, total loss of one's own. In this authoritarian society, it is possible to act out dominance fantasies by pretending, to self as well as others, total passivity and subjection.
(...) there is great variation in depth of dissociation in a single individual over an extended period of time, in one individual from occasion to occasion, and among individuals. The subject who experiences possession trance with more frequency comes to experience it with greater ease, with less disturbance, and with more control over the process. Also, the more knowledge of the experience is acquired, the greater the control. The Haitians recognize these facts when they say that the greater esoteric knowledge a person acquires the more rarely will he be possessed.