Question

In which foundational text of Jainism is the sutra "Upayogo Lakshanam" (Consciousness/Attention is the defining characteristic of the soul) found?

• A. Parikshamukham
• B. Samayasara
• C. Tattvartha Sutram
• D. Aptamimamsa

Hint:

The Tattvartha Sutra is the primary source for most "one-line definitions" in Jain exams. If a quote sounds like a short Sanskrit aphorism, it's likely from here!

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Defining the Jiva (soul) is the starting point of Jain philosophy. Since matter and soul are often mixed in the worldly state, we need a "Lakshana" (defining characteristic) that is present in all souls and absent in all non-souls. This characteristic is "Upayoga"—the functional manifestation of consciousness. The most famous aphoristic source for this definition is a text universally accepted by all Jain sects.

Step 2: Detailed Explanation:
The sutra "उपयोगो लक्षणम्" (Upayogo Lakshanam) is the 8th sutra of the 2nd chapter of the Tattvartha Sutra, authored by Acharya Umasvati.
1. What is Upayoga? It is the result of the soul's innate power of knowledge (Jnana) and perception (Darshana). It is like the light of a lamp. A soul is not just a passive "thing"; it is an active, conscious entity that "attends" to objects. This "attention" or "application of consciousness" is Upayoga.
2. Significance of the Text: The Tattvartha Sutra is considered the "Bible of Jainism" because it was the first text to systematically present the entire Jain doctrine in Sanskrit sutras.
3. Analysis of other options:
- Samayasara (Option B): Written by Kundakunda, it is the peak of Jain mysticism. While it discusses the soul (Atma), it uses poetic verses rather than the formal "Lakshana" sutra format.
- Parikshamukha (Option A): A logic text by Manikyanandi. It discusses knowledge (Pramana) but is not the source of this ontological definition of the soul.
- Aptamimamsa (Option D): A work by Samantabhadra defending the omniscient being (Apta).
By defining Jiva through Upayoga, Acharya Umasvati established that life is not just biological function, but conscious awareness. This definition is used to distinguish the soul from its physical body (which is Ajiva/Pudgala). Wherever there is Upayoga, there is a Soul. Even in deep sleep or fainting, the potential for Upayoga remains, distinguishing the living being from a piece of wood or stone.

Step 3: Final Answer:
The definitive statement "Upayogo Lakshanam" is found in the Tattvartha Sutra, the foundational work of Jain philosophy.