 Yet, it is not enough for one person to be disponible in order for the full communion of disponibilité to occur. It is entirely possible for one person to come to an encounter in a completely open and available manner, only to be rebuffed by the total unavailability of the other person. Ideally, a relationship of availability must include an element of reciprocity. However, the fact that reciprocity is necessary in an intersubjective relationship does not mean that reciprocity may be demanded of such a relationship. Disponibilité does not insist on its rights or make any claim on the other whatsoever. It is analogous to the situation of “a being awaiting a gift or favor from another being but only on the grounds of his liberality, and that he is the first to protest that the favor he is asking is a grace [que cette grâce demandée est une grâce], that is to say the exact opposite of an obligation” (Marcel 1962a, p. 55). Nevertheless, the fact that disponibilité does not demand reciprocity and that some kind of relationship is indeed possible without such reciprocity does not alter the fact that such reciprocity must be present if the relationship is to fully flower. “One might therefore say that there is a hierarchy of choices, or rather invocations, ranging from the call upon another which is like ringing a bell for a servant to quite the other sort of call which is really like a kind of prayer” (Marcel 1951a, p. 179).