Four ‘destructive’ types of karma, which affect the innate qualities of the soul and thus hinder the path to liberation. They are:
darśana-āvaraṇīya-karma –veils the soul’s perception – darśana
jñāna-āvaraṇīya-karma – veils the soul’s knowledge – jñāna
antarāya-karma – obstructs the soul’s energy – vīrya
mohanīya-karma – deludes the soul’s bliss – sukha.