Vaisesika Analysis of the Aspects of Reality The founder of Vaisesika philosophy is the sage Kanada, who was also known as Uluka, so this system is sometimes called Aulukya. Kanada wrote the first systematic work of this philosophy, Vaisesika Sutra. This work is divided into ten cantos, each canto containing two sections. Prasastapada wrote a commentary on this Sutra entitled Svartha Dharma Samgraha that is so famous that it is called Bhasya, which means simply `commentary.' In Indian philosophical discourse, whenever the word Bhasya is used by itself without further specification, it is understood to refer to this commentary. Two well-known explications of Prasastapada's work are Udayana's Kirana-vali and Sridhara's Nyayakandali. The significant feature of this system is the introduction of a special category of reality called uniqueness (visesa). Thus, this system is known as Vaisesika. Vaisesika is allied to the Nyaya system of philosophy. Both systems accept the liberation of the individual self as the end goal; both view ignorance as the root cause of all pain and misery; and both believe that liberation is attained only through right knowledge of reality. There are, however, two major differences between Nyaya and Vaisesika. First, Nyaya philosophy accepts four independent sources of knowledge--perception, inference, comparison, and testimony--but Vaisesika accepts only two--perception and inference. Second, Nyaya maintain s that all of reality is comprehended by sixteen categories (padarthas), whereas Vaisesika recognizes only seven categories of reality (see chart). These are: dravya (substance), guna (quality), karma (action), samanya (generality), visesa (uniqueness), samavaya (inherence), and abhava (nonexistence). The term padartha means "the object denoted by a word," and according to Vaisesika philosophy all objects denoted by words can be broadly divided into two main classes--that which exists, and that which does not exist. Six of the seven padarthas are in the first class, that which exists. In the second class, that which does not exist, there is only one padartha, abhava, which stands for all negative facts such as the nonexistence of things. The first two categories of reality--substance and quality--are treated in greater detail in the following discussion than are the remaining five. The Category of Substance--Nine Dravyas Dravya, substance, is that in which a quality or an action can exist but which in itself is different from both quality and action. Without substance, there cannot be a quality or an action because substance is the substrat um of quality and action, and it is also the material cause of the composite things produced from it. A cloth, for example, is formed by the combination of a number threads of certain colors. The threads are the material or constit utive causes of the cloth because it is made of the threads that subsist in the cloth. There are nine kinds of substances: earth, water, fire, air, ether, time, direction, soul, and mind. The first five of these are called phys ical elements because each of them possesses a specific>>> ***[TABLE]*** Vaisesika's Seven Categories (Padirthas) of Reality Substance (nine dravyas) Earth, water, fire, air, space or ether, time, direction, soul, and mind. Quality (twenty-four gunas) Color, taste, smell, touch, sound, number, magnitude, distinctness, union, separation, remoteness, nearness, cognition, pleasure, pain, desire, aversion, effort, heaviness, fluidity, viscidity, tendency, virtue, and nonvirtue. Action (karma) Generality (samanya) Uniqueness (visesa) Inherence (samavaya) Nonexistence (abhava) ***[END OF TABLE]*** quality that can be perceived by an external sense faculty. Each of the senses is composed of elements, whose distinguishing qualities are registered by specific sensory receptors. For example, smell is the particular property of the earth, and it is apprehended by the nostrils. Taste is the particular pr