All perception and action is anytime happening under conditions or constraints. Following this motive, aided by interpretations and colored pictures, we will cross many areas. The tools we will be using on our way, are phenomena and signs, especially terminal signs, then particularly with symmetry and redundancy as the recurrence of the same. Because we are concentrating on entities of parts, colors and relations, we will meet world by structural esthetics and art. We will investigate the artificial beings Galathea and Lara Croft, explore masked constraints and reversible figures. Information will challenge us by innovation and emergence. On redundancy break and regularity we will meet the mathematicians Herman Weyl and Paul Lorenzen. Then we will engage in regency graphics, in concrete art and in the minimal definition of art by Max Bill. An outstanding constraint will be emphasized: Brain is not making consciousness but constraining it. With a poetical epilogue ends the book.weiterlesen