5 Mates of long affiliation develop a mate-empathy link. Aligning on the same frequencies, the mates engage in a constant exchange of perception, thought and emotion. To the uninformed observer, psychic conversation between mates of many years looks bizarre. Scant expression and gesture, interspersed by an infrequent word, are the only physical signs that a conversation is taking place. Historians hypothesize that such motions are vestigial from a time before history when humans hadn't yet developed psychic powers. This exchange is so fast and garbled that even Wizard-empaths find it difficult to follow. For most long-standing couples, intervals of separation cause each person periods of mild grief and depression, although each knows that the other is alive. The frequencies of each havin