“Then in a moment, in that vast space of rocks and sky and scorching sun, I understood that he had not meant religious faith, not exactly. He was not urging me to become a Muslim or to believe in one interpretation of God rather than another. He knew me for what I was, an old, cold, cautious scientist. That was what I was then. And he was simply pointing out to me the first step to take. The word he had used was faith, but what he meant was belief. The first step was simple: it was to believe in belief itself. I had just taken that step. At long last I understood.I had belief. I did not know, or for the moment care, what exactly it was I had to believe in. I only knew that belief in something was the first step away from believing in nothing, the first step away from a world which only recognised what it could count, measure, sell or buy. The people here still had that innocent power of belief: not the angry denial of other people’s belief of religious fanatics, but a quiet affirmation. That was what I sensed here, in this land and in this place, which made it so different from home. It was not the clothes, not the language, not the customs, not the sense of being in another century. It was none of these. It was the pervading presence of belief.I believed in belief. I didn’t exactly feel as if I was on the road to Damascus, and I was aware I could not think straight because of the power of the sun, but now I knew what the Yemen salmon project was all about. It had already worked its transformation on me. It would do the same for others.”