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30
Tavāthasūtra
The establishment of the inner activity of the soul in a single subject by a person with excellent concentration is called meditation.
It remains for that moment, that is, until the internal moment occurs.
The six types of concentration in physical composition—Vajirṣabhana, Ardhavajīrṣabhana, and Nāra are considered the three excellent ones. Only one with excellent concentration is deserving of meditation. Because, for the mental strength required in meditation, the necessary physical strength is found in those three forms of concentration; it is not present in the other three. It is well-known that the main support of mental strength is the body, and physical strength depends on the physical composition, so those with non-excellent forms of concentration are not fit for meditation. The weaker the physical composition, the weaker the mental strength; the weaker the mental strength, the less stable the mind will be. Therefore, those with weak physical composition, that is, with non-excellent concentration, have less focus in any subject, whether it is praiseworthy or unpraiseworthy.
1. In the Digambara tradition, the three with excellent concentration are considered fit for meditation; the commentary and its elaboration favor regarding the first two types of concentration as the Lords of meditation.
2. When the ends of two bones are joined in one another's socket, it is called Mṛkatabhandha or nāra. When the joints of such a type are pressed together, they bind with the Rṣabhānara. And when those three are increased, it is said that they are fixed together on one Vajkīla, which is called the full year of Rṣabhānara concentration.