Final answer:
The question relates to Joban Pagi, a figure from Indian historical narratives, but it does not match the provided text about the Pochang and Gil-Dong. Accurate information would require consulting specialized historical sources.
Step-by-step explanation:
The question 'When did Joban Pagi's life change?' does not seem to relate to the provided reference text discussing the Pochang and Gil-Dong. Nevertheless, Joban Pagi is a historical figure associated with stories and myths from the Indian state of Gujarat. Specific details about the transformative events in his life may depend on local narratives and historical accounts. Hence, it is important to consult specific cultural and historical resources about Joban Pagi to find an accurate answer.