Avarana (आवरण)

Sanskrit Verse

गतिर्गन्धवहेनास्य यदाऽऽव्रियतेऽनिलेन हि।

— (Charaka Samhita, Chikitsasthana 28/60)

Explanation

Avarana means ‘covering’ or ‘occlusion’. It is a complex pathological state where the normal function of one dosha (or sub-dosha, dhatu, or mala) is obstructed or covered by another. It most commonly involves Vata dosha, especially its subtypes. For example, the function of Prana Vayu can be obstructed by Kapha, leading to respiratory issues.

Clinical Importance

Avarana creates complex and often contradictory symptoms, making diagnosis difficult. It is a key concept in understanding chronic neurological and degenerative diseases. The treatment involves first clearing the obstruction and then pacifying the primary aggravated dosha.