It is a Jain belief that bad karma can be cancelled by practising austerity, penance, and self-mortification. The harsher the asceticism the quicker will be this process of destroying the results of an evil past. There is a certain logic in this belief, for by suffering this self-imposed pain one is also suffering the bad karma, albeit in a concentrated form, and not evading it.
-- Notebooks Category 9: From Birth to Rebirth > Chapter 3: Laws and Patterns of Experience > # 174
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