In short. After freedom only prarābdha karma has to be lived out, even though the self-realized one knows that it is only a story, an appearance. Since there are no more goals, desires, fears and especially doership, no new karma will be created.

Synonymous with videha mukti (for a detailed explanation see there in this dictionary) and called parinirvāṇa in Buddhism (parinibbāna in Pali). In Buddhism this is also depicted by a lying dead Buddha.

The word mukhyam (main thing) is used here in the sense of absolutely main, because single, non-dual, only...