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Verse 100
Austerities (tapas) and observance of vows (vrata) are like heating our souls up. On performance of such laudable efforts, some will acquire true knowledge and attain liberation, but others will not be able to get rid of worldly sufferings and are destined to stay forever in the cycle of rebirths (samsāra). The attainment of purity in a soul has a beginning but impurity is beginningless.
In this verse Acarya Samantabhadra makes an important point: purity or impurity of souls is their inherent nature (svabhava) and, therefore, not open to logical argument (tarka). We cannot know through indirect knowledge of the senses if a person has the capacity to attain liberation (mokṣa); only the Omniscient can know this.
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