What does the author mean when he writes, "dr. v is simultaneously the fellow villager that he once was, and continues to be, and the extraordinary healer he has become"?

He means that "despite his success and great importance, Dr. V remains humble". 

The writer stayed through one week volunteering at an eye healing facility in India where a huge number of patients recover their sight every year. He was profoundly touched by the dedication of Dr. V and his team to helping their patients. The experience appears to have impacted the writer's own particular point of view.

it continues in business

answer; shipments were made easier,and trade was easier;