In diseases, the wise physicians administer drugs made up of combinations of two or more rasas etc., and also the combined or single rasa separately (as required).
यः स्याद्रसविकल्पज्ञः स्याच्च दोषविकल्पवित्| न स मुह्येद्विकाराणां हेतुलिङ्गोपशान्तिषु ||२७||
One, who is conversant with the variations of rasas and dosha, does not confuse in diagnosing the cause and symptoms of the disease and decide the course of treatment of diseases.
व्यक्तः शुष्कस्य चादौ च रसो द्रव्यस्य लक्ष्यते| विपर्ययेणानुरसो रसो नास्ति हि सप्तमः ||२८||
Rasa is that which is perceived at first in dry form (of the substance). The contrary (perceived afterwards and drug in wet form) is known as anurasa (subsidiary taste). There is no seventh rasa (as unmanifested one).
sanskara (processing) and abhyasa (practice): these properties are known as paradi (beginning with para). They are the means of success (in treatment), I am explaining them with definitions.