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#By maintaining the body constituents which are proportionate, in their normal proportions.

#By maintaining the body constituents which are proportionate, in their normal proportions.

For executing all these three duties, the ''vaidya'' (Ayurvedic practitioner or physician) requires ''samanya'' which leads to increase and ''vishesha'', which leads to decrease of existent imbalances/impurities. Therefore, they are mentioned first. ''Samanya'' and ''vishesha'' reside in ''dravya, guna'' and ''karma'', so a ''vaidya'' needs to study them. Relationship of guna and karma with dravya is samavaya. Samavaya is responsible for existence of dravya, guna and karma all. Their relationship is indicated by placing all three in continuation in that verse. Ayurveda gives more importance to gunas (properties and also qualities). So guna is mentioned first. E.g. Vacha is described as ugragandha (having strong smell).If the drug is not possessing these desired qualities, vaidya may not select that drug, instead he may select an alternative.

For executing all these three duties, the ''vaidya'' (Ayurvedic practitioner or physician) requires ''samanya'' which leads to increase and ''vishesha'', which leads to decrease of existent imbalances/impurities. Therefore, they are mentioned first. ''Samanya'' and ''vishesha'' reside in ''dravya, guna'' and ''karma'', so a ''vaidya'' needs to study them. Relationship of ''guna'' and ''karma'' with ''dravya'' is ''samavaya''. ''Samavaya'' is responsible for existence of all the three - ''dravya, guna'' and ''karma''. Their relationship is indicated by placing all three in continuation in that verse. [https://en.wikipedia.org/wiki/Ayurveda Ayurveda] gives more importance to ''gunas'' (properties and also qualities). So ''guna'' is mentioned first. E.g. ''Vacha'' is described as ''ugragandha'' (having strong smell).If the drug is not possessing these desired qualities, ''vaidya'' may not select that drug, instead he may select an alternative.

It may appear that the concepts of samanya etc. are philosophical. But Ayurveda applies these concepts in practice.

It may appear that the concepts of ''samanya'' etc. are philosophical. But [https://en.wikipedia.org/wiki/Ayurveda Ayurveda] applies these concepts in practice.

Out of these six categories, dravya, guna and karma truely exist. Samanya, vishesha and samavaya doesn’t exist in the external world. They exist because we understand them.

Out of these six categories, ''dravya, guna'' and ''karma'' truly exist. ''Samanya, vishesha'' and ''samavaya'' do not exist in the physical world. They exist in a metaphysical sense.

==== Definition of Ayurveda ====

==== Definition of Ayurveda ====