I believe what Kaptow is trying to say that anything can be art if looked at a certain way. It's all a matter of perspective. Something as mundane and common as brushing your teeth becomes so much more when you pay attention. It's makes you think of what your really missing throughout the day. It makes you ask what are you missing out on when you just go through the motions.
It relates to class because the examples we have been viewing can raise questions to the casual viewer as to what makes it art. The block if I e for example, intended to be a work of art, can be seen by some as just a guy pushing ice. It really makes perspective seem even more important.