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Chapter - Sutra 29-30
The mind, when engaged in calculations, becomes distracted and is more inclined towards agitation than concentration. Similarly, the Jain tradition does not accept the validity of maintaining meditation for an extended period, such as a day, a month, or longer. This is because it shows that extending meditation for a longer duration can lead to disturbances of the senses, making it difficult to sustain beyond a brief moment of internal focus. To say one has meditated for a day, a full day and night, or longer means that the flow of meditation has persisted for that duration; that is, meditating once on a particular focus, and then shifting to a different aspect of the same focus or to another focus, and continuing in this manner, leads to a prolonged flow of meditation. This internal moment is related to comprehending the temporal dimension of the eightfold meditation. The temporal dimension of meditation performed in a state of omniscience may also be prolonged, as the mind, speech, and bodily activities can be extended for longer periods through steadfast effort. The focus on a particular object is subject to transformations, indicating that the object is not a complete substance; because the contemplation of substance is possible only through its various transformations. [27-28]
Now, the categories of meditation are described: the four types of meditation are Arta, Raudra, Dharma, and Shukla. 29.