Why is paragraph 11 important?

Paragraph eleven is important because it makes special note of Begum Jaan's transformation, which is credited to Rabbu.

Soon her thin body began to fill out. Her cheeks began to glow and she blossomed in beauty. It was a special oil massage that brought life back to the half-dead Begum Jaan. Sorry, you won’t find the recipe for this oil even in the most exclusive magazines.