The Brahma sūtra is an early exposition of the Vedanta-interpretation of the Upanishads. It is an attempt to systematise the various strands of the Upanishads which form the background of the orthodox systems of thought. It is also called Uttara-Mimāṃsā or the investigation of the later part of the Vedas, as distinguished from the Mimāṃsā of the earlier part of the Vedas and the Brahmanas which deal with ritual or karma-kānda. It is intended to be a summary of the teaching of the Upanishads.
