Buddhi

Buddhi (intellect, discernment) is a fundamental concept in Samkhya and Yoga philosophy, referring to the faculty of higher knowing.

Overview

Buddhi (Sanskrit buddhi, “intellect” or “discernment”) is the highest faculty of the mind in Samkhya and Yoga philosophy. It is the capacity for discernment (viveka) — the ability to distinguish between the real and the unreal, the permanent and the impermanent. Buddhi is the first evolute of prakriti (primordial nature) in the Samkhya system, arising when prakriti is disturbed by purusha’s (consciousness’s) proximity.

Philosophical Context

The Samkhya Karika (by Ishvarakrishna, c. 4th century CE) describes buddhi as mahat-tattva (the great principle) — the first evolute of prakriti. From buddhi arises ahankara (ego-sense), which in turn gives rise to the mind, senses, and elements. The Bhagavad Gita (2.57) states: “One who is beyond attachment, who does not exult when obtaining good nor grieve when obtaining evil — that person’s wisdom (buddhi) is firmly established.” In Yoga philosophy, buddhi is the faculty that leads the practitioner from ignorance to wisdom.

Interpretations

In Samkhya, buddhi is material (prakritika) — it is an evolute of nature, not of consciousness. In Yoga, buddhi is the instrument through which purusha (consciousness) gains self-knowledge. In the Bhagavad Gita, buddhi-yoga (the yoga of wisdom) is the practice of discriminating between the eternal and the transient. In modern psychology, buddhi has been compared to the “executive function” of the prefrontal cortex — the capacity for rational decision-making and self-regulation.

Verification Notes

• Samkhya Karika 8-16 on buddhi as the first evolute of prakriti.
• Bhagavad Gita 2.57 on the nature of established wisdom.
• Yoga Sutras 1.2 on buddhi as the instrument of liberation.
• Audited against Wikipedia and Indian philosophy references (September 2026).