When they talk about flakes of manna falling from the sky, I am sure they are talking about tostones de panapén.
Panapén or pana is what Puerto Ricans call breadfruit. The back story of how breadfruit got to the West Indies from South East Asia is actually one of the most famous seafaring tales around: The Mutiny on the Bounty.

The LeBron Brothers are the guys in the Plaza de Mercado de Mayagüez (where my great-grandfather brought his produce and my great-uncle had a booth in the early 1900s) who supply me with the good stuff, already peeled and pared!
Captain Bligh, on that ill-fated trip was trying to bring breadfruit to plant in the Caribbean for cheap slave food.

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