Aureola enveloping the whole body, generally appears oval or elliptical in form, but occasionally depicted as circular, vesica piscis, or quatrefoil. When it appears merely as a luminous disk round the head, it is called specifically a "halo" or "nimbus", while the combination of nimbus and aureole is called a "glory". The strict distinction between nimbus and aureole is not commonly maintained, and the latter term is most frequently used to denote the radiance round the heads of saints, angels or Persons of the Trinity. This is not to be confused with the specific "motif" in art of the Infant Jesus
What Is Art? inclusive: "jokes", "home decoration", and "church services" may all be considered art as long as they convey feeling. It is also amoral: "[f]eelings … very bad and very good, if only they infect the reader … constitute the subject of art". Tolstoy also notes that the "sincerity" of the artist—that is, the extent to which the artist "experiences the feeling he conveys"—influences the infection. While Tolstoy's basic conception of art is broad and amoral, his idea of "good" art is strict and moralistic, based on what he sees as the function of art in the development of humanity: just as