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* '''Jyotish:''' The word '''Jyotish''' (Vedic astronomy/astrology) literally means '''light''', referring to the science that sheds light on the mysteries of the universe.
* '''Jyotish:''' The word '''Jyotish''' (Vedic astronomy/astrology) literally means '''light''', referring to the science that sheds light on the mysteries of the universe.
== 1. The Definition of Direct Perception (Pratyakṣa) ==
== The Definition of Direct Perception (Pratyakṣa) ==
The foundational definition of perception in the '''Nyāya''' school is based on the contact between the sense organ and the object.
The foundational definition of perception in the '''Nyāya''' school is based on the contact between the sense organ and the object.
Meaning: Knowledge produced by the contact of a sense organ (''indriya'') and its object (''artha'') is called perception (''pratyakṣa'').
Meaning: Knowledge produced by the contact of a sense organ (''indriya'') and its object (''artha'') is called perception (''pratyakṣa'').
== 2. The Mechanism of Perception ==
== The Mechanism of Perception ==
Ayurvedic and philosophical texts describe perception as a coordinated process involving the sense organ, the mind (''manas''), and the self (''ātman'').
Ayurvedic and philosophical texts describe perception as a coordinated process involving the sense organ, the mind (''manas''), and the self (''ātman'').
Meaning: Knowledge arises through conjunction of the self, the senses, and their objects.
Meaning: Knowledge arises through conjunction of the self, the senses, and their objects.
== 3. The Nature of Vision and Light ==
== The Nature of Vision and Light ==
In Indian Knowledge Systems, vision is associated with '''Tejas''' (fire/radiance) and '''Rūpa''' (form or color).
In Indian Knowledge Systems, vision is associated with '''Tejas''' (fire/radiance) and '''Rūpa''' (form or color).
This tradition describes particles of light as extremely subtle and moving in straight paths.
This tradition describes particles of light as extremely subtle and moving in straight paths.
== 4. Obstacles to and Conditions for Perception ==
== Obstacles to and Conditions for Perception ==
Perception may fail if the instruments of knowledge (mind or senses) are impaired.
Perception may fail if the instruments of knowledge (mind or senses) are impaired.
* Just as no reflection is seen in a dirty mirror, perception fails when the mind or senses are defective.
* Just as no reflection is seen in a dirty mirror, perception fails when the mind or senses are defective.
== 5. Classification of Perceivable Objects ==
== Classification of Perceivable Objects ==
* '''Vaiśeṣika Sūtra (4.2.1):'''
* '''Vaiśeṣika Sūtra (4.2.1):'''
* '''Viṣaya''' – sense objects
* '''Viṣaya''' – sense objects
== 6. Summary ==
== Summary ==
According to these traditions:
According to these traditions: