A little anecdote I shall share about Butare museum. When I got to this section there was one part that puzzled me: in the section on umupfumu (witches) and traditional beliefs (linked above) it explained that your body is made out of two things: 'umubiri', the flesh, and 'igicucu', the shadow.
'Amos,' I asked our guide when we got back in the van - 'am I missing something? I know the word 'igicucu' but doesn't that mean 'idiot'?'
'That too,' he replied.
So it would seem that my shadow is an idiot