We are always vulnerable, never safe

There is sometimes a competition between the mode of goodness and the mode of ignorance. That is the way of material existence. Even when one is situated in the mode of goodness, there is every possibility that his position will be mixed with or attacked by the mode of passion or ignorance. That is the law of material nature. Although pure goodness, or suddha-sattva, is the basic principle in the spiritual world, pure manifestation of goodness is not possible in this material world. Thus, the struggle for existence between different material qualities is always present.

Srimad Bhagavatam 4.5.4 purport