[2] Smṛti are derivative, secondary works and considered less authoritative than śruti in Hinduism, except in the Mīmāmsa school of Hindu philosophy.
[6][7] The smṛti literature is a corpus of varied texts that includes: the six Vedāṅgas (the auxiliary sciences in the Vedas), the epics (the Mahābhārata and Rāmāyaṇa), the Dharmasūtras and Dharmaśāstras (or Smritiśāstras), the Arthasaśāstras, the Purāṇas, the kāvya or poetical literature, extensive Bhashyas (reviews and commentaries on śruti and non-śruti texts), and numerous nibandhas (digests) covering politics, ethics (nītiśāstras),[8] culture, arts and society.
[26] For example, the attempt to perfect the art of rituals led to the science of Kalpa, which branched into three Kalpa-sūtras: Srauta-sūtras, Grhya-sūtras, and Dharma-sūtras (estimated to have been composed between 600-200 BCE).
[26] Jan Gonda states that the initial stages of Smṛti texts structurally developed in the form of a new prose genre named Sūtras, that is "aphorism, highly compact precise expression that captured the essence of a fact, principle, instruction or idea".
Compressed content allowed more essential, densely structured knowledge to be memorized and verbally transferred to the next generation in ancient India.
[28] Smṛtis contribute to exposition of the Hindu Dharma but are considered less authoritative than Śrutis (the Vedic corpus that includes early Upanishads).
[32] The Yajnavalkya Smṛti includes four Vedas, six Vedangas, Purana, Nyaya, Mimamsa and other sastras, in addition to the ethical conduct of the wise, as sources of knowledge and through which sacred law can be known.
[33][34] Levinson states that the role of Shruti and Smṛti in Hindu law is as a source of guidance, and its tradition cultivates the principle that "the facts and circumstances of any particular case determine what is good or bad".
[35] Medhatithi's philosophical analysis of and commentary on criminal, civil and family law in Dharmaśāstras, particularly of Manusmriti, using Nyaya and Mimamsa theories, is the oldest and the most widely studied tertiary Smṛti.