# Primary Source References

Classical śāstra-s cited across the Dharma Foundation concepts, captured as first-class OKF concepts so citations are traversable within the bundle.

## Vedānta foundations

* [Brahma Sūtras](brahma-sutras.md) - Bādarāyaṇa's aphoristic systematization of the Upaniṣadic teaching on Brahman; one of the prasthāna-trayī.
* [Vivekacūḍāmaṇi](vivekachudamani.md) - An Advaita prakaraṇa traditionally attributed to Ādi Śaṅkarācārya on discrimination (viveka) and the identity of Ātman and Brahman.

## Upaniṣads (śruti)

* [Kaṭha Upaniṣad](katha-upanishad.md) - The dialogue of Naciketā and Yama; source of the chariot analogy of the Self and the faculties.
* [Bṛhadāraṇyaka Upaniṣad](brihadaranyaka-upanishad.md) - The oldest and largest Upaniṣad; source of 'neti, neti' and core teachings on Ātman and transmigration.
* [Māṇḍūkya Upaniṣad](mandukya-upanishad.md) - The shortest Upaniṣad; a dedicated analysis of Om and the four states of consciousness, with Gauḍapāda's Kārikā.
* [Chāndogya Upaniṣad](chandogya-upanishad.md) - A major Sāmaveda Upaniṣad; source of the mahāvākya 'tat tvam asi.'
* [Muṇḍaka Upaniṣad](mundaka-upanishad.md) - An Atharvaveda Upaniṣad distinguishing higher (parā) from lower (aparā) knowledge; the two-birds image.
* [Taittirīya Upaniṣad](taittiriya-upanishad.md) - A Yajurveda Upaniṣad teaching the five sheaths (pañcakośa) and Brahman as Sat-Chit-Ānanda.
* [Praśna Upaniṣad](prashna-upanishad.md) - An Atharvaveda Upaniṣad structured as six questions; dedicated in large part to prāṇa.

## Yoga and Sāṃkhya

* [Yoga Sūtras of Patañjali](yoga-sutras.md) - The 196 aphorisms that define classical yoga as chitta-vṛtti-nirodha and lay out the eight limbs (aṣṭāṅga).
* [Sāṃkhya Kārikā](samkhya-karika.md) - Īśvarakṛṣṇa's classical verse exposition of the Sāṃkhya darśana — Puruṣa, Prakṛti, the guṇas, and the 24 tattvas.

## Smṛti

* [Bhagavad Gītā](bhagavad-gita.md) - The 700-verse dialogue between Kṛṣṇa and Arjuna in the Mahābhārata that synthesizes the paths of karma, jñāna, and bhakti.
