At your eye line you can't see above of below the shelves, but for the ones above your eye line (you are looking up to) and can only see their undersides, and for the ones below you eyeline (you are looking down at those and can only see their top surfaces).
Qof kasta oo inoo soo gaaray buug, waaweyn ama yar yar, oo ku saabsan Nabiga ma dafiri karto in ay aqoonsan xaaladda lagu sarraysiin doonaa wixii Eebe isaga aragtay.