“The past, if there is such a thing, is mostly empty space, great expanses of nothing, in which significant persons and events float. Nigeria was like that for me: mostly forgotten, except for those few things that I remembered with an outsize intensity. These were the things that had been solidified in my mind by reiteration, that recurred in dreams and daily thoughts: certain faces, certain conversations, which, taken as a group, represented a secure version of the past that I had been constructing since 1992. But there was another, irruptive, sense of things past. The sudden reencounter in the present, of something or someone long forgotten, some part of myself I had relegated to childhood and to Africa.”