The Brahma Sūtras are organized as four adhyāyas (books), each divided into four pādas (quarters), each holding a run of sūtras: 561 positions in the Atlas’s shared numbering. An address like sūtra 2.3.15 means adhyāya 2, pāda 3, fifteenth sūtra. Browse walks exactly this structure.
How the tradition characterizes the four adhyāyas
- Samanvaya
- harmony: all scriptural teaching converges on Brahman
- Avirodha
- non-contradiction: answering objections
- Sādhana
- the means to liberation
- Phala
- the fruit: the state attained
These names are traditional interpretive characterizations, used by commentators and scholars to describe what each book is doing. They are not titles in the sūtra text itself, and the Atlas’s own navigation stays with the structural labels (Adhyāya I through IV), so that the shared spine never asserts an interpretation.