Causes of Disease in Ayurveda and the Vedas: Prajnaparadha
- Dr.Madhavi Srivastava
- May 24
- 4 min read
According to the classical Ayurvedic text Ashtanga Hridaya, all diseases originate from the aggravation of the three doshas—Vata, Pitta, and Kapha. These three fundamental principles regulate movement, metabolism, and structural stability in the body. When they remain in balance, health is maintained; when they become disturbed, illness arises.
The primary cause of this disturbance is the consumption of harmful substances and irregular lifestyle habits. Improper diet, incompatible food combinations, excessive indulgence, and disorderly routines gradually disrupt the natural equilibrium of the doshas, leading to disease. "सर्वेषामेव रोगाणां निदानं कुपिता मलाः । अप्टांग, निदान० १.१२"
Causes of Disease in Ayurveda and the Vedas: Prajnaparadha
Explore the Causes of Disease in Ayurveda and the Vedas: Prajnaparadha. Discover how Prajnaparadha impacts health and balance in Ayurveda.
Prajnaparadha: The Root Cause Behind All Disorders
Ayurveda identifies Prajnaparadha, or “crime against wisdom,” as the deepest cause of disease. Prajnaparadha refers to defects in human intellect that impair the ability to distinguish between right and wrong. When intellect becomes distorted, a person knowingly engages in unhealthy habits—whether in eating, drinking, conduct, or thought patterns. These intellectual errors first manifest in daily choices and eventually affect physical health. Ignorance and lack of discrimination lead to harmful actions, which disturb the doshas and give rise to illness. Thus, disease begins in the mind before appearing in the body.
Poison Theory in the Atharva Veda
The Atharva Veda describes poison (Visha) as a major cause of disease. Poison was believed to enter the body through snake bites, scorpion stings, poisonous arrows, or contaminated food. Once inside, it destroys Prana—the vital life force—and produces various illnesses. The Vedas also mention remedies such as honey and other medicinal substances for neutralising poison. A well-known principle, “Vishasya Vishmaushadham,” states that poison can be neutralised by poison, suggesting an early understanding that certain toxins may counteract others. The text also acknowledges that poison may accumulate gradually in the body through improper food, eventually leading to chronic disorders.यक्ष्माणां सर्वेषां विषं निरवोचमहं त्वत् । अ० ६.८.१०, मधुः...विषम् इयं वीरुद् अनीनशत् । अ० ७.५६. १-२
Germ Theory in Vedic Thought
The Vedas also describe bacteria or worms, known as Krimi, as causes of disease. These organisms are said to be both visible and invisible and to exist everywhere—in mountains, forests, medicinal plants, animals, and water. Entering the human body in subtle or gross forms, they generate various illnesses. This concept closely resembles modern germ theory. Although expressed in symbolic language, these descriptions show that ancient thinkers recognised the role of external living agents in causing disease.ये क्रिमयः... अस्माकं तन्वम् आविविशुः । अ० २.३१.५
ये क्रिमयः पर्वतेषु वनेषु ओषधीषु० । अ० २.३१.५
दृष्टान् ...अदृष्टान... प्रमृणन् क्रिमीन् । अ० ५.२३.६
Tridosha Theory in the Vedas
The concept of Tridosha is also found in Vedic literature, though under different terminology. The Rig Veda uses the term “Tridhatu,” which commentators interpret as referring to Vata, Pitta, and Kapha. In Vedic language, Kapha is associated with Abhra (water or phlegm), Vata retains its meaning as wind, and Pitta corresponds to Shushma (bile or heat). Diseases caused by their imbalance were termed Abhraja, Vataja, and Shushmaja. These references indicate that the foundational principles of Ayurveda were already present in Vedic thought. यो अभ्रजा वातजा यश्च शुष्मः० । अ० १.१२.३ ११.
त्रिधातु शर्म वहतं शुभस्पती । ऋग्० १.३४.६
वातपित्तश्लेष्म-धातुत्रयविषयं सुखम्० । सायण
य एकमोजस्नेधा विचक्रमे । अ० १.१२.१
Three Types of Medicines and Threefold Suffering
The Rig Veda mentions three types of medicines—divine, earthly, and aquatic—which provide benefits in three ways. These benefits may refer to the destruction of the three doshas or to the removal of three kinds of suffering: physical (Adhibhautika), divine or environmental (Adhidaivika), and spiritual or internal (Adhyatmika). This classification demonstrates the holistic healing framework of Vedic medicine, addressing both physical and subtle dimensions of health.
Physical and Transitory Diseases
The Vedas classify diseases into two main categories: physical and transitory. Physical diseases are referred to as Roga or Amiva, while transitory or subtle afflictions are described as Rakshasa and Yatudhana. These symbolic terms may represent psychological disturbances or unseen influences, indicating that the Vedas recognised both tangible and subtle causes of illness. अपामीवा भवतु रक्षसा सह । ऋग० ६.८५.१
Mental and Emotional Causes of Disease
The Atharva Veda identifies excessive lust (Kama) and ill-will (Apakama) as significant causes of disease. Negative thoughts distort the intellect and weaken physical strength, eventually resulting in illness. Worry and grief are also described as harmful. One mantra advises against excessive concern about the past, as worry depletes vitality and leads to decline. These teachings highlight the profound connection between mental states and physical health. मा गतानामा दीधीथा ये नयन्ति परावतम् । अ० ८.१.८
Prana: The Foundation of Health and Life
Prana, the vital life force, is described as life, death, disease, and blessing in the Atharva Veda. When Prana is strong, health prevails; when it is depleted, disease and death follow. Strengthening Prana through practices such as Pranayama, mental purity, and truthfulness promotes vitality and resilience. The Vedas suggest that truthfulness purifies the mind, destroys harmful thoughts, and protects against disease, emphasising the ethical dimension of health. प्राणो मृत्युः प्राणस्तक्मा० । प्राणो ह सत्यवादिनम् उत्तमे लोक आ दधत् । अ० ११.४.११
Vedic Remedies for Disease
The Atharva Veda outlines several remedies for maintaining health. Keeping Agni, the digestive fire, strong is considered essential, as weak digestion leads to disorder. Soma symbolises medicines, purity, and sattvic thoughts. Pootadaksha represents purity of mind and action, as well as complete cleanliness. Practices such as Yajna, involving Vedih, Barhih, and Samidh, are recommended to maintain environmental and spiritual harmony. Together, these remedies reflect a comprehensive approach that integrates physical care, mental discipline, and spiritual practice. अग्निः, सोमः, पूतदक्षाः, वेदिः, बर्हिः । अ० ५.२२.१
Conclusion
The Vedas and Ayurveda present a multidimensional understanding of disease. Illness may arise from toxins, microorganisms, dosha imbalance, intellectual error, negative emotions, weakened digestion, or depleted life force. Health is achieved when the body, mind, intellect, and Prana remain in harmony. This ancient wisdom teaches that true healing begins with right knowledge, disciplined living, mental purity, and conscious alignment with natural law.
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