The following article is based on a sermon by missionary Del Tarr who served fourteen years in West Africa with another mission agency. His story points out the price some people pay to sow the seed of the gospel in hard soil:
I was always perplexed by Psalm 126 until I went to the Sahel, that vast stretch of savanna more than four thousand miles wide just under the Sahara Desert. In the Sahel, all the moisture comes in a four month period: May, June, July, and August. After that, not a drop of rain falls for eight months. The ground cracks from dryness, and so do your hands and feet. The winds of the Sahara pick up the dust and throw it thousands of feet into the air. It then comes slowly drifting across West Africa as a fine grit. It gets inside your mouth. It gets inside your watch and…