From the standpoint of its structure, the ''Sutra Sthana'' consists of thirty chapters, grouped into eight logical groupings. The first seven are ''Chatushkas''(or tetrads, i.e., groups of four), while the last one is a ''sangrahadvaya''(a group of two chapters). | From the standpoint of its structure, the ''Sutra Sthana'' consists of thirty chapters, grouped into eight logical groupings. The first seven are ''Chatushkas''(or tetrads, i.e., groups of four), while the last one is a ''sangrahadvaya''(a group of two chapters). |