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There are 4 types of *vyanjanavgraha* (excluding the eyes and mind, in relation to the 4 senses) and 24 types of *arthaavgraha* (6 x 4) = 24 types (five senses and mind, these six and *avgraha*, *iha*, *avaya*, *dharana*). Thus, in the aforementioned twelve types of substances, there is a tendency of 28 types, so 28 x 12 = 336 types of *matijnana*.
146. Question: What is *shrutajnana*? How many types are there?
Answer: *Shrutajnana* is the knowledge of a different substance, taking the substance known through *matijnana* as a basis. *Shrutajnana* occurs only after *matijnana*. There are two types of *shrutajnana*: (1) *aksharatmika* and (2) *anakshatatmika*. *Aksharatmika*, meaning word-based *shrutajnana*, is the main type, because in the path to liberation and in all worldly transactions, such as giving and taking, words and the understanding derived from them are of primary importance. *Anaksharatmika* *shrutajnana* is found in all beings, from those with one sense to those with five senses, but it is not useful in worldly transactions or in the path to liberation.