यथैधांसि समिद्धोऽग्निर्भस्मसात्कुरुतेऽर्जुन।ज्ञानाग्निः सर्वकर्माणि भस्मसात्कुरुते तथा ॥

Just as the sees that are roasted cannot germinate, so also the actions that are burnt by the fire of knowledge cannot bear fruits, i.e., cannot bring man to this world again for the enjoyment of the fruits of his actions. This is reducing actions to ashes. The actions lose their potency as they are burnt by the fire of knowledge. When the knowledge of the Self dawns, all actions with their results are burnt by the fire of that knowledge just as fuel is burnt by the fire. When there is no agencymentality (the idea I do this), when there is no desire for the fruits, action is no action at all. It has lost its potency. The fire of knowledge can burn all actions except the Prarabdha Karma, or the result of the past action which has brought this body into existence and which has thus already begun to bear fruits or produce effects.According to some philosophers even the Prarabdha Karma is destroyed by the fire of knowledge