Avatarika
शकटवत्संभृतसंभार उत्सर्जन्द्यातीत्युक्तम्, किं पुनः तस्य परलोकाय प्रवृत्तस्य पथ्यदनं शाकटिकसंभारस्थानीयम्, गत्वा वा परलोकं यत् भुङ्क्ते, शरीराद्यारम्भकं च यत् तत्किम् इत्युच्यते-
In plain words
There was already a simile for this — a heavily loaded cart, creaking as it goes. So here is the question that follows from it: when this self sets out for the next world, what exactly plays the part of the carter's provisions for the road? Once it gets there, what does it actually enjoy? And what is it that starts up a new body on the other end? That is what gets answered next.
Close to the Sanskrit
'Like a cart, having gathered its load, it creaks as it goes' — thus was it said. Now [the question is]: what, for him who has set out toward the other world, is the food-for-the-road that stands in the place of the carter's load? And having gone to the other world, what is it that he enjoys? And what is it that initiates a [new] body, etc.? — this is [now] stated—