Jvarotpatti — The Origin and Distribution of Jvara
Fever
पुण्यपापविनाशान्ते पुण्यपापसमीरित: । देहं विशति कालेन ततो<यं कर्मसम्भवम्
puṇyapāpavināśānte puṇyapāpasamīritaḥ | dehaṁ viśati kālena tato 'yaṁ karmasambhavam ||
असित ने कहा—जब पुण्य और पाप के फल का अंत हो जाता है, तब वही पुण्य-पाप की प्रेरणा से जीव समयानुसार देह में प्रवेश करता है; इस प्रकार यह देहधारण अपने ही कर्म से उत्पन्न होता है।
असित उवाच
Embodiment is governed by moral causality: when the stored results of merit and sin reach their completion, the jīva is driven by those karmic forces to take up another body; thus worldly existence is karma-born.
In Śānti Parva’s instruction on dharma and liberation, the sage Asita explains the mechanism of rebirth: the exhaustion and momentum of puṇya and pāpa determine the next entry into a body over time.