Changes

#In ''avarana'' the ''gati'' of ''vata'' is obstructed partially or fully. Once gets obstructed the ''vata'' may simply get lodged there (''baddha marga, margarodha''), try to nullify the obstruction, may get covered by the obstructing substance (''avrita''), adopt an opposite direction (''pratiloma'') or alter the direction (''viloma''). The different terminologies have been used to denote ''avarana'' in different contexts according to the nature of ''avarana'' and the state of ''vata'' and ''marga'' (passage). In case of ''gatatva'' the ''gati'' of vitiated ''vata'' aggravated and starts moving abnormally leading to localization at particular sites.

#In ''avarana'' the ''gati'' of ''vata'' is obstructed partially or fully. Once gets obstructed the ''vata'' may simply get lodged there (''baddha marga, margarodha''), try to nullify the obstruction, may get covered by the obstructing substance (''avrita''), adopt an opposite direction (''pratiloma'') or alter the direction (''viloma''). The different terminologies have been used to denote ''avarana'' in different contexts according to the nature of ''avarana'' and the state of ''vata'' and ''marga'' (passage). In case of ''gatatva'' the ''gati'' of vitiated ''vata'' aggravated and starts moving abnormally leading to localization at particular sites.

*''Avarana'' is caused by ''purnata'' (filling) of other ''dosha'' in the ''srotas/marga'' (passage) of ''vata''. In ''gatatva'' the ''srotas'' or sites of occupation of ''vata'' are ''rikta'' (unfilled or spacious) and the aggravated ''vata'' fills the ''srotas''/site.

*''Avarana'' is caused by ''purnata'' (filling) of other ''dosha'' in the ''srotas/marga'' (passage) of ''vata''. In ''gatatva'' the ''srotas'' or sites of occupation of ''vata'' are ''rikta'' (unfilled or spacious) and the aggravated ''vata'' fills the ''srotas''/site.

5. In āvarana of vāta, swakarma vriddhi (exaggerated activities) of āvaraka (covering dosha) is manifested. The āvr̥ta (i.e. vāta) will show swakarma hāni (diminished activity). This is the general feature of āvarana. Here the excessively increased strong āvaraka suppresses the normal action of āvr̥ta (i.e. vāta). Therefore, when the obstruction is complete it may lead to the prakopa of vāta resulting in the presentation of vāta vitiated symptoms as well as its disorders14.

#In ''avarana'' of ''vata, swakarma vriddhi'' (exaggerated activities) of ''avaraka'' (covering ''dosha'') is manifested. The ''avrita'' (i.e. ''vata'') will show ''swakarma hani'' (diminished activity). This is the general feature of ''avarana''. Here the excessively increased strong ''avaraka'' suppresses the normal action of ''avrita'' (i.e. ''vata''). Therefore, when the obstruction is complete it may lead to the ''prakopa'' of ''vata'' resulting in the presentation of ''vata'' vitiated symptoms as well as its disorders<ref>Agnivesha, Carakasamhita wtih Ayurveda Dipika commentry Chikitsasthana; 28/215; Dr.Gangasahay pandey (eds.) 6th ed. Varanasi: Chaukhambha Sanskrit Sansthan; 2000; Chakrapani on above</ref>. In case of ''gatatva'' the symptomatology will be predominantly of ''vata'' vitiation and pain is a common and chief complaint in all the conditions of ''gatatva''.

In case of gatatva the symptomatology will be predominantly of vāta vitiation and pain is a common and chief complaint in all the conditions of gatatva.

#Obstruction or covering of ''vata'' is possible by body components like ''dosha'' (''pitta'' and ''kapha''),tissues,food,  excretory products or mutual affliction of ''vata'' types. ''Gatatva'' of ''vata'' (affection) is happening in empty spaces or hollow cavities of tissues, their elements, organs and other body parts. In ''avarana'', the body component is in increased state causing fullness in respected channels, while in ''gatatva'' pathology, the body components are in depleted state casusing emptiness in the respected channels. ''Dhatugata vata'' will be presented with decreased quality of tissues associated with signs of vitiated ''vata''. Obviously, exceptions are possible according to the complexities of process of ''avarana'' or ''gatatva''.

6. Obstruction or covering of vata is possible by body components like dosha (pitta and kapha),tissues,food,  excretory products or mutual affliction of vata types. Gatatva of vāta (affection) is happening in empty spaces or hollow cavities of tissues, their elements, organs and other body parts. In avarana, the body component is in increased state causing fullness in respected channels, while in gatatva pathology, the body components are in depleted state casusing emptiness in the respected channels. Dhātugata vāta will be presented with decreased quality of tissues associated with signs of vitiated vāta. Obviously, exceptions are possible according to the complexities of process of āvarana or gatatva.

#In case of ''avarana'' of ''vata'', the ''avaraka'' is important for  treatment since vitiation of ''vata'' is passive. When ''avarana'' is removed vitiated ''vata'' gets pacified. But in cases of ''gatatva'', the vitiated ''vata'' has to be treated first along with correction of ''adhisthana''.

7. In case of āvarana of vāta, the āvaraka is important for  treatment since vitiation of vāta is passive. When āvarana is removed vitiated vāta gets pacified. But in cases of gatatva the vitiated vāta has to be treated first along with correction of adhisthāna.

#Diagnosis of ''avarana'' is made with the help of ''upashaya–anupashaya'' (pacifying and aggravating factors) method. Diagnosis of ''gatatva'' is made according to the ''rupa'' (symptomatology).  

8. Diagnosis of āvarana is made with the help of upashaya–anupashaya (pacifying and aggravating factors) method. Diagnosis of gatatva is made according to the rupa (symptomatology).  

#Complications of ''avarana'' are explained in case of improper diagnosis and delayed treatment like ''hridroga, vidradhi, kamala'' etc. No known complication occur in ''gatatva''.

9. Complications of āvarana are explained in case of improper diagnosis and delayed treatment like hr̥drōga, vidradhi, kamala etc. No known complication occur in gatatva.

#''Avarana'' of ''vata'' may cause depletion of nutrition to ''dhatu'' (''dhatugata sama'') leading to successive diminition of ''rasadi dhatu'' (''rasadimscha upasosayet'').<ref>Ibid 28/61</ref> No such reference is available in case of ''gatatva''.  

10. Āvarana of vāta may cause depletion of nutrition to dhātu (dhātugata sāma) leading to successive diminition of rasādi dhātu (rasādimsca upasosayet).15 No such reference is available in case of gatatva.  

 

The above discussed points are briefly enlisted in the table below.

The above discussed points are briefly enlisted in the table below.

Āvr̥ta (obstructed)vāta Gata (excess movement)vāta

Āvr̥ta (obstructed)vāta Gata (excess movement)vāta