Shruti (श्रुति, literally "that which is heard") is the principle of oral transmission of knowledge from teacher to student, parampara (परम्परा).

The highest form of cognition. In the Vedic tradition, Shruti is the highest form of cognition: knowledge transmitted in living dialogue and immediately tested against real cases is considered more reliable than written text.

Why Oral Is Superior to Written

A typo vs living correction. A misprint in a book is inherited unnoticed across generations; an error in oral transmission is discovered and corrected here and now through feedback.

The Fundamental Principle of a Living Tradition

Study — apply — reflect. Every studied proposition is immediately applied in practice and reflected upon through real events. If the received knowledge does not work — this is a signal to correct, not a reason to look away.

Guru-shishya parampara. This is precisely why study with a living teacher (guru-shishya parampara) is considered in Vedic schools the only complete format for transmission.

Shruti in Errarium

A principle of practice quality. In the Errarium context, Shruti is the regulating principle of practice quality for all methods of the Vedic tradition: Jyotish (#18), Sankhya Shastra (#30), Ayurveda (#19).

What destroys a method. Isolation from the teacher and from living practice leads to the accumulation of uncorrected errors and to the destruction of the method.

Three Key Principles

1. "If you study from a book, you may die from a typo"
2. "Everything we study, we immediately apply in practice and reflect upon through feedback"
3. "You cannot teach — you can only learn"

Shruti and Smriti

Shruti vs Smriti. Shruti also denotes the corpus of Vedic revealed texts (the Vedas, the Upanishads) — those that were "heard" by the rishis in a state of higher consciousness and then transmitted orally. In this sense Shruti is opposed to Smriti — "that which is remembered", secondary texts created by humans.