I believe this. When we meet those we fall in love with, there is an aspect of our spirit that is historian, a bit of a pedant who reminisces or remembers a meeting when the other has passed by innocentlybut all parts of the body must be ready for the other, all atoms must jump in one direction for desire to occur.
But nothing is said of the closeness between two people: how they grew in the shade of each other's presence. No one speaks of that exchange of gift and character --- the way a person took on and recognized in himself the smile of a lover. Individuals are seen only in the context of these swirling social tides.