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What is the relationship between perception and knowledge from the perspective of time? This question also needs to be pondered. All the Acharyas agree that for the Chhadmastha, perception and knowledge occur sequentially, not simultaneously. There are three opinions among the Acharyas regarding how perception and knowledge are used in a Kevali. According to the first opinion, knowledge and perception occur sequentially. According to the second belief, perception and knowledge occur simultaneously. According to the third belief, there is no difference between knowledge and perception, meaning they are one. It is also stated in Aavashyakaniyukti, 64 Vishesh Aavashyak Bhashya, etc., that even a Kevali cannot have two uses simultaneously. The Agamas of the Shvetambar tradition are unanimous in this regard, they do not consider the perception and knowledge of a Kevali to be simultaneous. According to the Digambar tradition, Keval Darshan and Keval Gyan are simultaneous. Acharya Umaswati also held this view. The use of Mati, Shruta, etc. occurs sequentially, not simultaneously. In a Kevali, perception and cognitive use occur simultaneously in every moment. In the Niryamsar, Acharya Kundakunda has clearly written that just as light and heat are together in the sun, so too are perception and knowledge together in a Kevali. The third tradition is that of the great philosopher Acharya Siddhasen Divakar of the 4th century. He wrote in the Sanmatitark Prakaran Granth - "We can prove the difference between knowledge and perception up to Manah Paryaya, but it is not possible to prove the difference between Keval Gyan and Keval Darshan. The destruction of 100 Darshanavaran and Gyanavaran occurs simultaneously. How can a difference like 'this happens first, this happens later' be made in the use that arises from that destruction?" When liberation is attained, the first thing that is destroyed is Mohaniya Karma. After that, Gyanavaran, Darshanavaran, and Antaraya are destroyed simultaneously. When there is no difference in time in the destruction of both Darshanavaran and Gyanavaran, then on what basis can it be said that Keval Darshan happens first and Keval Gyan later? To solve this problem, if someone believes that both are simultaneously present, then that is also not appropriate, because two uses cannot happen simultaneously. The simplest and most logical solution to this problem is that there is no difference between perception and knowledge in the Kevali state. Assuming perception and knowledge to be separate creates another problem: if a Kevali knows everything in a single moment, then he should know everything forever. If his knowledge is not always complete, then how is he omniscient?