Also, the photos of the author in their underwear is to make it clear to the viewer about the positions being demonstrated. Also, the backstory of the author w

Also, the photos of the author in their underwear is to make it clear to the viewer about the positions being demonstrated. Also, the backstory of the author was that he was in the army (before he got blind), and spent time with people from Kenya then. Thus, there is likely a focus of a person from Kenya in this photo. Also, it is about finding people who are not the ones in developed countries sleeping on modern era invented beds and beddings.