Chapter -18: Moksha–Sanyāsa Yoga This chapter of 78 verses that deals with the aspects of human behaviour based on the three natures - virtue, passion, and delusion - and the path of selfless action, ends describing the relevance of, and the reverence to, the Gita. While v12 breaks the continuity between v11 and v13 with hyperbolic averments, V41- v48 that describe the allotted duties of man on the basis of his caste are clearly interpolations. In essence, the discourse till v40 is about the human nature and how it affects man and as can be seen, the duties on caste lines detailed in the said interpolations have no continuity of argument.