Definition of Dravya: Dravya (element including drugs) is the substratum for karma (actions) and guna (properties) and that which is the intrinsic or material cause of its effect (samavayi karana); Definition of Guna: Guna (property) is related with samavaya (inseparable concomitance to dravya), is devoid of action and is , i.e., non-inherent cause of its effect(asamavayi).
Definition of Dravya: Dravya (element including drugs) is the substratum for karma (actions) and guna (properties) and that which is the intrinsic or material cause of its effect (samavayi karana); Definition of Guna: Guna (property) is related with samavaya (inseparable concomitance to dravya), is devoid of action and is , i.e., non-inherent cause of its effect(asamavayi).