The Harmattan is a dry wind that blows fine sand dust from the Sahara Desert across West Africa during the dry winter months. It reduces the visibility in the whole region. When we were teaching at a theological college in northern Nigeria, the Harmattan would sometimes be so dense that we could not see more than a few metres in front of our door. When someone entered the compound, we would initially not be able to recognise them. An eery shape would appear in the mist, looking like a tree or bush. As it walked closer towards the door, we would begin to see a vague human shape that gradually became more distinct until, a few metres from our door, we could see the student’s face clearly and hear their voice ring out. We would then respond joyfully and announce to the household that we had recognised the visitor who had come.