Shadows Can Draw Stairs

ignore this poor quality, is mostly caused by artificial light from my Nokia 5130 XPressMusic, it can only photograph with natural light for a good photo quality...

this is not why i submited this photo anyways XD

here is, it was in my sister house in a barbecue, so I noticed the shadows of the this spiral stairs, the shadows itself looked like a draw of stairs... I was like O.o
cool...
so if you saw this pic, you can tell me your opinion XD.
just want to know if u see actually the shadows that looks like a draw of stairs xD