I haven’t ridden a horse much this summer
hope it helps!
The meaning behind that simile is that ‘they’ are getting tons of gold like they were corn grains which if you’ve seen them, there’s a lot in just one corn. So basically those people were getting a lot of gold.
Http://digital.library.upenn.edu/women/keller/life/life.html
The preposition in this case is From while the prepositional phrase is From China as it consists of the preposition from and the noun China.
