we talk about the venice biennale. >> it's a form of perceptual jim fast i cans in which we practice to understand what we don't understand and that's what i love about art and what i think would encourage people to become familiar with art. not to go there to learn now go there to lose themselves and see things that don't utterly make sense. >> rose: we conclude with an important artist, james turrell. his show is currently on display at the guggenheim museum. >> ideas and thoughts are cheap. you have many of them but it's actually pulling it off, actually making these things, realizing them. and as an artist you have to manifest and i don't get to count the things that i haven't done but that i thought of that was terrific. >> rose: the venice biennale and james turrell when we continue. captioning sponsored by rose communications from our studios in new york city, this is charlie rose. >> rose: the venice biennale is a major contemporary art exhibition held every two years in veps any, italy. more than 158 artists from over 88 countries are participating this year. for the first t