The word kusalena is very important. One should live in the material world very expertly. The material world is known as the world of duality because one sometimes has to act impiously and sometimes has to act piously. Although one does not want to act impiously, the world is so fashioned that there is always danger (padam padam yad vipadam). Thus even when performing devotional service a devotee has to create many enemies. Prahlada Maharaja himself had experience of this, for even his father became his enemy. A devotee should expertly manage to think always of the Supreme Lord so that the reactions of suffering cannot touch him. This is the expert management of papa-punyapious and impious activities. An exalted devotee like Prahlada Maharaja is jivan-mukta; he is liberated even in this very life in the material body.