Changes

[[Vata]] performs all its activity for a healthy long life subject to status of its three functions. They are ''akupita''(not increased, decreased or vitiated), ''sthanastha'' (located in its own place) and ''avyahatagati''(nothing is interfering with its movement or ''gati'').

[[Vata]] performs all its activity for a healthy long life subject to status of its three functions. They are ''akupita''(not increased, decreased or vitiated), ''sthanastha'' (located in its own place) and ''avyahatagati''(nothing is interfering with its movement or ''gati'').

=== Nature of ''vata'' ===

=== Nature of [[vata]] ===

''Pitta'' and ''kapha'' are relatively compact and in corporeal form. On the contrary ''vata'' is incorporeal (''avayavasamghātarahita''). It can be termed as rarified in nature. The ''vata'' is ''anavasthita'' (unstable) too. These two properties are due to its composition formed by ''akasha'' and ''vayu'' predominantly<ref> Indu, Vagbhata, Sutra sthana Chap 20 Doshabhediya Verse 2, In: Sreekumari Amma (eds.) 1st ed. Trivandrum: Publication Division; Ayurveda College, 2000.</ref>  which are incorporeal (''amurta''). ''Chalatva'' (mobility) and ''apratighata'' (unobstructability) are characteristics of ''vayu'' and ''akasha'' perceptible by the tactile sense organ[ Cha. Sa. [[Sharira Sthana]] 1/29-30]. The biological ''vata'' (which is present in the living being) is self originated (''svayambhu''), subtle (''sukshma'') and all pervasive (''sarvagata''). It is invisible (''avyakta'') but its activities are patent or manifest (''vyaktakarma'').<ref>Dalhana, Sushruta. Nidana Sthana, Cha.1 Vatavyadhi Nidana Adhyaya verse 5. In: Jadavaji Trikamji Aacharya, Editors. Sushruta Samhita. 8th ed. Varanasi: Chaukhambha Orientalia;2005. p.1.</ref>

[[Pitta]] and [[kapha]] are relatively compact and in corporeal form. On the contrary [[vata]] is incorporeal (''avayavasamghātarahita''). It can be termed as rarified in nature. The [[vata]] is ''anavasthita'' (unstable) too. These two properties are due to its composition formed by [[akasha]] and [[vayu]] predominantly<ref> Indu, Vagbhata, Sutra sthana Chap 20 Doshabhediya Verse 2, In: Sreekumari Amma (eds.) 1st ed. Trivandrum: Publication Division; Ayurveda College, 2000.</ref>  which are incorporeal (''amurta''). ''Chalatva'' (mobility) and ''apratighata'' (unobstructability) are characteristics of [[vayu]] and [[akasha]] perceptible by the tactile sense organ[ Cha. Sa. [[Sharira Sthana]] 1/29-30]. The biological [[vata]] (which is present in the living being) is self originated (''svayambhu''), subtle (''sukshma'') and all pervasive (''sarvagata''). It is invisible (''avyakta'') but its activities are patent or manifest (''vyaktakarma'').<ref>Dalhana, Sushruta. Nidana Sthana, Cha.1 Vatavyadhi Nidana Adhyaya verse 5. In: Jadavaji Trikamji Aacharya, Editors. Sushruta Samhita. 8th ed. Varanasi: Chaukhambha Orientalia;2005. p.1.</ref>

Anavasthita (unstable) is due to chala property of ''vata''.  This continuous moving nature of ''vata'' is explained with other terminologies also like ''sheeghravata''(swift movement)[Cha. Sa. [[Vimana Sthana]] 8/98] , ''ashukari'' (instantaneous action), ''muhushchari'' (rhythmic movement).<ref>Dalhana, Sushruta. Nidana Sthana, Cha.1 Vatavyadhi Nidana Adhyaya verse 9. In: Jadavaji Trikamji Aacharya, Editors. Sushruta Samhita. 8th ed. Varanasi: Chaukhambha Orientalia;2005. p.1.</ref>. It abounds in the fundamental quality of ''raja'' (the principle of cohesion and action). The predominance of ''raja'' is responsible for the instability of ''vata''. The quality of ''chalatva'' is directional in nature, which is explained by the term ''gati''. ''Vata'' convenes all bodily activities by this important feature.

Anavasthita (unstable) is due to chala property of [[vata]].  This continuous moving nature of [[vata]] is explained with other terminologies also like ''sheeghravata''(swift movement)[Cha. Sa. [[Vimana Sthana]] 8/98] , ''ashukari'' (instantaneous action), ''muhushchari'' (rhythmic movement).<ref>Dalhana, Sushruta. Nidana Sthana, Cha.1 Vatavyadhi Nidana Adhyaya verse 9. In: Jadavaji Trikamji Aacharya, Editors. Sushruta Samhita. 8th ed. Varanasi: Chaukhambha Orientalia;2005. p.1.</ref>. It abounds in the fundamental quality of ''raja'' (the principle of cohesion and action). The predominance of ''raja'' is responsible for the instability of [[vata]]. The quality of ''chalatva'' is directional in nature, which is explained by the term ''gati''. [[Vata]] convenes all bodily activities by this important feature.

Owing to its incorporeal nature and instability ''vata'' is ''anasadhya'' (inaccessible) also. The inaccessibility is characterized in regard to its functional and physical attributes but more relevant regarding the therapeutic aspect. Above explained cardinal features make ''vata achintya veerya'' (inconceivable prowess) and ''doshanam neta'' (propeller of all functional elements in the body).[Cha. Sa. [[Sutra Sthana]] 1/8]

Owing to its incorporeal nature and instability [[vata]] is ''anasadhya'' (inaccessible) also. The inaccessibility is characterized in regard to its functional and physical attributes but more relevant regarding the therapeutic aspect. Above explained cardinal features make [[vata]] achintya veerya (inconceivable prowess) and [[dosha]]nam neta (propeller of all functional elements in the body).[Cha. Sa. [[Sutra Sthana]] 1/8]

=== Properties of ''vata'' ===

=== Properties of ''vata'' ===